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This is an alphabetical list of Welsh women.
A
- Jane Aaron (born 1951), literature scholar, researcher, non-fiction writer
- Janet Ackland (born 1938), bowler
- Helen Adams (born 1978), television personality
- Sian Adey-Jones (born 1957), model, actress
- Wendy Albiston (born 1969), actress
- Jessica Allen (born 1989), racing cyclist
- Jan Anderson (born 1974), actress
- Elizabeth Andrews (1882–1960), suffragist, writer
- Josie d'Arby (born 1972), actress, writer, television presenter
- Jane Arden (1927–1982), film director, actress, screenwriter, playwright, poet
- Kim Ashfield (born 1959), model
- Laura Ashley (1925–1985), fashion designer
- Tiffany Atkinson (born 1972), poet, educator
- Trezza Azzopardi (born 1961), widely translated novelist, short story writer, author of The Hiding Place
- Janet Ackland (born 1938), bowler
B
- Emilia Baeyertz (1842–1926), Christian missionary
- Mary Balogh (born 1944), Welsh-Canadian historical novelist
- Iona Banks (1920–2008), actress
- Elinor Barker (born 1994), racing cyclist
- Lorraine Barrett (born 1950), politician
- Rachel Barrett (1874–1953), suffragette, newspaper editor
- Shirley Bassey (born 1937), singer
- Anne Beale (1816–1900), popular novelist, poet, children's writer
- Remy Beasley (active since 2015), actress
- Eirlys Bellin (active since 2000s), actress
- Anna Maria Bennett (c.1750–1808), novelist
- Jane Brereton (1685–1740), English-language poet
- Tara Bethan (born 1984), actress, singer
- Bridget Bevan (1698–1779), educationalist and public benefactor
- Ruth Bidgood (born 1922), poet
- Joyce Bland (1906–1963), film actress
- Cate Le Bon (born 1983), singer-songwriter
- Di Botcher (active since 1986), actress
- Ffion Bowen (born 1991), rugby union player
- Nan Braunton (1895–1978), actress
- Jane Brereton (1685–1740), poet, contributor to The Gentleman's Magazine
- Becky Brewerton (born 1982), golfer
- Rhoda Broughton (1840–1920), novelist, short story writer
- Mia Arnesby Brown (1867–1931), painter
- Eleanor Bufton (1842–1893), actress
- Fanny Bulkeley-Owen (1845–1927), historian, writer
- Frances Bunsen (1791–1876), painter, writer
- Eleanor Bufton (active since 2004), actress
C
- Betsi Cadwaladr (1789–1860), nurse in the Crimean War
- Julia Callan-Thompson (1944–1979), model, designer, socialite
- Saint Callwen (6th century), Christian saint
- Saint Canna (6th century), nun
- Nia Caron (active since 1980s), Welsh-language actress
- Emma Catherwood (born 1981), actress, model
- Emma Catherwood (1968), actress
- Catrin ferch Gruffudd ap Hywel (fl. 1555), poet
- Jane Cave (c.1754–1812), English-language poet
- Christine Chapman (born 1956), politician
- Brenda Chamberlain (1912–1971), artist, poet
- Kara Chesworth (born 1972), racing cyclist
- Shefali Chowdhury (born 1988), actress
- Sybil Christopher (1929–2013), actress, theatre director
- Charlotte Church (born 1986), singer
- Gillian Clarke (born 1937), poet, playwright, translator, broadcaster
- Hafina Clwyd (1936–2011), educator, writer
- Grace Coddington (born 1941), fashion writer, director of Vogue, memoirist
- Lu Corfield (active since 2012), actress
- Nicole Cooke (born 1983), racing cyclist
- Glenys Cour (born 1924), painter, stained glass artist
- Shân Cothi (born 1965), singer, actress
- Margaret Courtenay (1923–1996), actress, singer, entertainer
- Elinor Crawley (born 1991), actress
- Leila Crerar (active since 1980s), actress
- Jasmine Cresswell (born 1941), best selling novelist
- Katie Curtis (born 1988), road and track cyclist
D
- Fflur Dafydd (born 1978), novelist, playwright, poet, singer, writes in Welsh and English
- Hannah Daniel (born 1986), actress
- Lisa Lee Dark (born 1981), opera singer, voice actress
- Jennifer Daniel (born 1936), film actress
- Alexa Davies (born 1995), actress
- Catherine Glyn Davies (1926–2007), historian, translator
- Clara Novello Davies (1861–1943), singer and conductor
- Deddie Davies (born 1938), actress
- Deborah Kay Davies, contemporary poet, novelist, educator
- Edna Davies (1905–1969), actress
- Gwendoline Davies (1882–1951), philanthropist, arts patron
- Jocelyn Davies (born 1959), politician
- Karen Davies (born 1965), golfer
- Llewela Davies (1871–1952), pianist and composer
- Lynette Davies (1948–1993), actress
- Margaret Davies (fl. 1700s), poet, scribe
- Margaret Davies (1884–1963), arts patron
- Mary Davies (1855–1930), mezzo-soprano
- Mary Davies (1846–1882), poet
- Nina Davies (born 1974), racing cyclist
- Phoebe Davies (1864–1912), Welsh-born American actress
- Rachel Davies (1846–1915), lecturer and evangelist preacher
- Rose Davies (1882–1958), teacher, activist, politician
- Valerie Davies (1912–2001), swimmer
- Rebecca De Filippo (born 1994), rugby union player
- Cherry Dee (born 1987), model
- Sophie Dee (born 1984), pornographic actress
- Jen Delyth (born 1962), specializing in Celtic symbolism
- Myrtle Devenish (1913–2007), actress
- Marina Diamandis (born 1985), singer-songwriter
- Amy Dillwyn (1845–1935), novelist, industrialist
- Thereza Dillwyn Llewelyn, photographer, astronomer
- Leila Crerar (born 1984), actress
- Aimée Ann Duffy (born 1984), singer, songwriter
- Ruth Dunning (1911–1983), actress
E
- Aimee-Ffion Edwards (born 1987), actress
- Mary Anne Edmunds (1813–1858), educator
- Donna Edwards (born 1963), actress
- Dorothy Edwards (1903–1934), novelist, short story writer
- Fanny Winifred Edwards (1876–1959), schoolteacher, children's writer, dramatist
- Maudie Edwards (1906–1991), actress, singer, comedian
- Rhian Edwards (active from 2000s), poet
- Sarah Edwards (1881–1965), Welsh born American actress
- Sara Edwards (born 1961), broadcast journalist, television presenter
- Elen Egryn (1807–1897), Welsh-language poet
- Menna Elfyn (born 1952), Welsh-language poet, playwright, columnist, editor, poetry widely translated
- Gillian Elisa (born 1953), actress, singer, comedian
- Amy Evans (1884–1983), soprano, actress
- Peg Entwistle (1908–1932), actress
- Claire Evans (born 1983), model
- Christine Evans (born 1943), poet
- Elen Evans (born 1985), rugby union player
- Jennifer Evans (active since 2004), actress
- Kate Williams Evans (1866–1961), suffragette and activist for women's rights
- Laura Evans (active since 1990s), actress, singer, songwriter
- Margiad Evans (1909–1958), poet, novelist
- Mary Evans (1735–1789), sect leader
- Maxine Evans (born 1966), actress
- Sophie Evans (born 1993), singer, actress
- Laura Evans-Williams (1883–1944), soprano
F
- Pam Ferris (born 1948), actress
- Catrin Finch (born 1980), harpist
- Ilora Finlay, Baroness Finlay of Llandaff (born 1949), physician, politician
- Catherine Fisher (born 1957), novelist, poet, broadcaster
- Connie Fisher (born 1983), actress, singer
- Laura Ford (born 1961), sculptor
- Rosemarie Frankland (1943–2000), actress, model
- Jane Freeman (born 1921), actress
- Jocelyn Freeman (born 1986), pianist
- Kathleen Freeman (1897–1959), classicist
- Liz Fuller (born 1975), television presenter, actress, model
G
- Menna Gallie (1919–1990), novelist, translator
- Valerie Ganz (1936–2015), painter
- Jacqui Gasson (active since 1988), lord mayor of Cardiff
- Beti George (born 1939), journalist and broadcaster
- Seren Gibson (born 1988), model
- Sian Gibson (born 1976), actress, writer
- Olive Gilbert (1898–1981), singer, actress
- Annabel Giles (born 1950), broadcaster, best selling novelist, actress
- Julia Gillard (born 1961), Australian prime minister
- Mary Dilys Glynne (1895–1991), plant pathologist, mountaineer
- Julie Gould (born 1989), swimmer
- Helen Grace (active since 2004), film director
- Janice Gregory (born 1955), politician
- Sara Gregory (born 1986), actress
- Clare Greenwood (born 1958), cyclist
- Elizabeth Griffith (1727–1793), writer
- Helen Griffin (active since the 1980s), actress, writer
- Ann Griffiths (1776–1805), religious poet, hymn writer
- Lesley Griffiths (born 1960), politician
- Amy Guy (born 1983), model
- Lady Charlotte Guest (1812–1895), aristocrat and translator
- Bethan Gwanas, pen name of Bethan Evans (born 1962), Welsh-language novelist, children's writer
- Saint Gwenfyl (fl. 6th century), Christian saint
- Lowri Gwilym (1954––2010), television and radio producer
- Eirwen Gwynn (1916–2007), nationalist, writer, teacher and scientist
- Gwenllian ferch Gruffydd (1097–1137), Princess Consort of Deheubarth
- Gwenllian of Wales (1282–1337), daughter of Llywelyn ap Gruffudd
- Gwerful Fychan (fl. 1420–1490), Welsh-language poet
- Denise Gyngell (born 1961), singer, actress, model
H
- Cerys Hale (born 1993), rugby union player
- Holly Hale (born 1990), model
- Augusta Hall, Baroness Llanover (1802–1896), arts patron
- Nina Hamnett (1890–1956), painter
- Doris Hare (1905–2000), actress, singer
- Mali Harries (born c.1976), actress
- Edwina Hart (born 1957), politician
- Ann Hatton (1764–1838), novelist
- Myfanwy Haycock (1913–1963), poet, artist, broadcaster
- Angela Hazeldine (born 1981), actress, musician
- Venissa Head (born 1956), track and field athlete
- Anneliese Heard (born 1981), cyclist
- Georgia Henshaw (born 1993), actress
- Deirdre Hine (born 1937), physician
- Sally Hodge (born 1966), cyclist
- Frances Hoggan (1843–1927), physician, first female doctor registered in Wales
- Sophie Holland (active since 2000s), actress
- Karen Holford (active since 1990), engineer and professor
- Nichola Hope (born 1975), painter, writer, silhouettist
- Sarah Hope (born 1975), twin sister of Nichola, painter, writer, actress
- Mary Hopkin (born 1950), singer
- Sally El Hosaini (born 1976), film director, writer
- Ray Howard-Jones (1903–1996), Berkshire-born artist who lived in Penarth from an early age
- Ann Harriet Hughes (1852–1910), Welsh-language novelist, poet
- Ellen Hughes (1867–1927), Welsh-language writer, suffragist, temperance reformer
- Megan Hughes (born 1977), cyclist
- Nerys Hughes (born 1941), actress
- Judith Humphreys (born 1988), actress
- Ellen Hunter (born 1968), cyclist
- Ruth Hussey, from 2012 to 2014: Chief Medical Officer for Wales
- Jane Hutt (born 1949), politician
- Joan Hutt (1913–1985), Hertfordshire-born painter who moved to live in North Wales in 1949
- Emily Huws (born 1942), Welsh-language children's writer
I
J
- Katrina Jacks (born 1986), rower
- Angharad James (1677–1749), poet and harpist
- Becky James (born 1991), cyclist
- Irene James (born 1952), politician
- Jynine James (born 1972), actress, singer
- Maria James (1793–1868), Welsh-born American poet
- Stephanie James (born 1985), actress
- Kate Jarman (born 1980), actress
- Ruth Jên (born 1964), painter, illustrator
- Katherine Jenkins (born 1980), singer
- Kathryn Jenkins (1961–2009), scholar and writer of Welsh hymns
- Joan, Lady of Wales (c.1191–1237), wife of Llywelyn the Great
- Gwen John (1876–1939), painter
- Margaret John (1926–2011), actress
- Glynis Johns (1923–2024), actress, pianist, singer
- Alex Jones (born 1977), television presenter
- Alice Gray Jones (1852–1943), writer, editor
- Ann Jones (born 1953), politician
- Della Jones (born 1946), singer
- Dora Herbert Jones (1890–1974), administrator and singer
- Elin Jones (born 1966), politician
- Elizabeth Jane Louis Jones (1889–1952), scholar
- Frances Môn Jones (1919–2000), harpist and teacher
- Gwyneth Jones (born 1936), singer
- Iona Jones (active since 1986), broadcaster, television executive
- Louise Jones (born 1963), cyclist
- Mai Jones (1899–1960) songwriter, entertainer and radio producer
- Mary Jones (1896–1990), actress
- Mary Lloyd Jones (born 1934), painter, printmaker
- Mary Vaughan Jones (1918–1983), children's writer, teacher
- Ruth Jones (born 1966), actress, writer
- Ruth Jones, Labour Party politician
- Sue Jones-Davies (born 1949), actress, singer
K
L
- Margaret Lacey (1910–1989), actress, ballet teacher
- Kate Lambert (active since 2000s), model, fashion designer
- Sarah Lark (born 1983), singer, actress
- Lisa Lazarus (born 1987), model, actress
- Nancy Lee (born 1970), Welsh-born short story writer, novelist, now in Canada
- Ruby Levick (c.1872–1940), sculptor
- Donna Lewis (born 1973), singer, musician
- Eiluned Lewis (1900–1979), novelist, poet, journalist
- Emmeline Lewis Lloyd (1827–1913), mountaineer
- Gwyneth Lewis (born 1959), Welsh-language poet, national poet of Wales, also writes in English
- Princess Lilian, Duchess of Halland (1915–2013), fashion model, Swedish princess
- Danielle Lineker (born 1979), actress, model
- Betsan Llwyd, actress, since 2012, Arts Director of Bara Caws
- Margaret Lloyd (1709–1762), Moravian missionary
- Mary Lloyd (1819–1896), sculptor
- Mary Lloyd Jones (born 1934), painter
- Sian Lloyd (born 1972), news presenter
- Siân Lloyd (born 1958), weather presenter
- Angharad Llwyd (1780–1866), antiquary
- Eirian Llwyd (1951–2014), artist
- Martha Llwyd (1766–1845), poet, hymnist
- Jemma Lowe (born 1990), swimmer
M
- Georgia Mackenzie (born 1973), actress
- Margaret Mackworth, 2nd Viscountess Rhondda (1883–1958), businesswoman and suffragette
- Ruth Madoc (born 1943), actress, singer
- Sharon Maguire (born 1960), film director
- Ruth Manning-Sanders (1886–1988), poet, children's writer
- Edith Mansell Moullin (1859–1941), suffragist
- Deborah Manship (born 1953), actress
- Ursula Masson (1945–2008), educator, literature researcher, non-fiction writer
- Cerys Matthews (born 1969), singer, songwriter, broadcaster, writer
- Gwerful Mechain (c.1460–1502), early Welsh-language poet
- Nia Medi, since 2005, Welsh-language novelist, actress
- Leila Megàne (1891–1960), opera singer
- Sandy Mewies (born 1950), politician
- Dorothy Miles (1931–1993), poet, wrote in English and sign language
- Ruby Miller (born 1992), cyclist
- Tracey Moberly (born 1964), multidisciplinary artist
- Ann Moray (1909–1981), novelist, short story writer, singer
- Becky Morgan (born 1974), golfer
- Chloe-Beth Morgan (born 1986), model
- Diana Morgan (1908–1996), playwright, screenwriter
- Elaine Morgan (1920–2013), playwright, non-fiction writer
- Elaine Morgan (born 1960), singer
- Elizabeth Morgan (born 1930), actress, writer
- Gwenllian Elizabeth Fanny Morgan (1852–1939), mayor, antiquarian
- Helen Morgan (born 1952), model
- Kate Alicia Morgan (born 1983), model, actress
- Sally Moore (born 1962), painter
- Beth Morris (born 1949), actress
- Siwan Morris (born 1976), actress
- Moelona, pen name of Elizabeth Mary Jones (1877–1953), Welsh-language novelist, children's writer, translator
- Elena Puw Morgan (1900–1973), Welsh-language novelist, children's writer
- Eluned Morgan (1870–1938), Welsh-language author from Patagonia, travel writer, non-fiction writer
- Kate Alicia Morgan (born 1983), model
- Sharon Morgan (born 1949), actress
- Kay Morley-Brown (born 1963), athlete
- Kelly Morgan (born 1975), badminton player
- Penelope Mortimer (1918–1999), journalist, biographer, novelist
- Sophie Moulds (born 1992), model
- Wendy Mulford (born 1941), poet, feminist
- Catherine Murphy (born 1975), athlete
- Eve Myles (born 1978), actress
N
O
- Pixie O'Harris (1903–1991), Welsh-born Australian artist, poet, autobiographer, illustrator
- Tessie O'Shea (1913–1997), stand-up comedian
- Angharad ferch Owain (1065–1162), queen of Gwynedd
- Bethan Ellis Owen (active since 1990s), actress
- Lucy Owen (born 1970), television news reader
- Mary Owen (1796–1875), hymnwriter
- Meg Wynn Owen (born 1939), actress
- Morfydd Llwyn Owen (1891–1918), composer, pianist and singer
P
- Suzanne Packer (born 1958), actress
- Joanna Page (born 1978), actress
- Lisa Palfrey (active since 1990s), actress
- Davinia Palmer (born 1980), television presenter, voice-over artist, now in the United States
- Stephanie Parker (1987–2009), actress
- Molly Parkin (born 1932), painter, novelist, journalist
- Blanche Parry (1507–1590), personal attendant of Queen Elizabeth I
- Sarah Winifred Parry (1870–1953), writer
- Caryl Parry Jones (born 1958), singer, songwriter, actress, composer
- Amy Parry-Williams (1910–1988), singer, writer
- Karen Paullada (active since 2000s), actress
- Sarah Payne, probation executive
- Allison Pearson (born 1960), journalist, writer
- Jessie Penn-Lewis (1861–1927), evangelist, religious writer, magazine publisher
- Anne Penny (1729–1784), poet
- Mary Penry (1735–1804), Moravian sister in Pennsylvania
- Kelly-Louise Pesticcio (born 1974), beauty pageant winner
- Pauline Peters (born 1896), actress
- Pascale Petit (born 1953), poet
- Karen Paullada (active since 2009), actress
- Carys Phillips (born 1992), rugby union player
- Lauren Phillips (born 1981), actress
- Mary Elizabeth Phillips (1875–1956), medical doctor
- Siân Phillips (born 1933), actress
- Jayne Pierson (active since 2009), fashion designer
- Eleanor Pilgrim (born 1977), golfer
- Katherine Philips (1632–1664), poet, translator
- Victoria Plucknett (born 1953), actress
- Annie Powell (1906–1986), politician
- Shona Powell Hughes (born 1991), rugby union player
- Angharad Price, novelist since 1999, academic
- Dilys Price (1932–2020), educator and parachutist
- Maria Pride (born 1970), actress
- Myfanwy Pryce (1890–1976), novelist
Q
R
- Allen Raine, pen name of Anne Adalisa Beynon Puddicombe (1836–1908), novelist, wrote in English and Welsh
- Elizabeth Randles (c.1801–1829), harpist and pianist
- Susannah Jane Rankin (1897–1989), minister, educator, translator
- Helen Raynor (born 1972), television screenwriter, script editor, playwright
- Cara Readle (born 1991), actress
- Angharad Rees (1944–2012), actress
- Deryn Rees-Jones, since 1994, poet, essayist
- Dorothy Rees (1898–1987), Labour Party politician
- Sarah Jane Rees (1839–1916), teacher, poet, temperance campaigner
- Shelley Rees (active since 1990s), actress
- Yvette Rees (active in the 1960s and 1970s), actress
- Sian Reese-Williams (born 1981), actress
- Nicola Reynolds (born 1972), actress
- Beti Rhys (1907–2003), bookseller and author
- Elen Rhys (active since 2011), actress
- Nest ferch Rhys (1085–1136), princess of Deheubarth
- Shani Rhys James (born 1953), Australia-born painter, moved to Wales after graduation
- Mandy Rice-Davies (1944–2014), model, showgirl, writer
- Ceri Richards (1903–1971), painter
- Nansi Richards (1888–1979), harpist
- Rosalind Richards (active since 2000s), actress
- Mandy Rice-Davies (born 1986), actress
- Alexandra Roach (born 1987), actress
- Beth Robert (active since 1987), actress
- Kate Roberts (1891–1985), leading Welsh-language novelist, short story writer
- Nia Roberts (born 1972), actress
- Rachel Roberts (1927–1980), actress
- Sally Roberts Jones (born 1935), poet, biographer
- Nia Roberts (born 1979), actress
- Beth Robert (born 1979), actress
- Philippa Roles (born 1978), discus thrower
- Ceinwen Rowlands (1905–1983), soprano
- Jane Helen Rowlands (1891–1955), scholar, missionary
- Bernice Rubens (1923–2004), novelist, author of The Elected Member
- Joan Ruddock (born 1943), politician
S
- Saint Non (c. 5th–6th century), saint, mother of Saint David
- Rhian Samuel (born 1944), composer
- Molly Scott Cato (born 1963), politician, economist
- Lisa Scott-Lee (born 1975), singer
- Helen Sear (born 1955), photographic artist
- Carole Seymour-Jones (born 1963), biographer, columnist, literary non-fiction writer
- Caroline Sheen (born 1976), actress
- Sarah Siddons (1755–1831), actress
- Dorothy Simpson (born 1933), mystery novelist, crime-fiction writer
- Karen Sinclair (born 1952), politician
- Caroline Skeel (1872–1951), historian
- Sylvia Sleigh (1916–2010), Welsh-born American painter
- Dorothy Squires (1915–1998), singer
- Florence Smithson (1884–1936), actress, singer
- Emma Stansfield (born 1978), actress
- Alison Statton (born 1959), singer
- Irene Steer (1889–1947), swimmer
- Jaci Stephen (born 1958), journalist, broadcaster, actress, writer
- Catrin Stewart (born 1988), actress
- Sara Sugarman (born 1962), actress, film director
- Jessica Sula (born 1994), actress
- Jennifer Sullivan (born 1945), children's writer, critic
- Rosie Swale-Pope (born 1946), marathon runner, non-fiction writer
- Alia Syed (born 1964), Swansea-born artist and filmmaker, now living and working in London
T
- Myfanwy Talog (1944–1995), actress
- Helen Thomas (1966–1989), peace activist
- Imogen Thomas (born 1982), model
- Louie Myfanwy Thomas (1908–1968), novelist
- Lucy Thomas (1781–1847), businesswoman
- Lynda Thomas (born 1981), musician, singer-songwriter
- Madoline Thomas (1890–1989), actress
- Margaret Thomas (1779–?), hymnwriter
- Queenie Thomas (1898–1977), film actress
- Rachel Thomas (1905–1995), actress
- Sarah Thomas (born 1981), field hockey player
- Sian Thomas (born 1953), actress
- Hester Thrale (1741–1821), diarist
- Lily Tobias (1887–1984), novelist, short story writer, activist
- Angela Tooby (born 1960), athlete, runner
- Susan Tooby (born 1960), athlete, runner
- Catherine Tregenna (active since 2000s), playwright, scriptwriter, actress
- Barbara Margaret Trimble (1921–1995), novelist
- Hayley Tullett (born 1975), athlete, runner
- Bonnie Tyler (born 1951), singer
- Irene Steer (1889–1947), swimmer
U
V
W
- Kirsty Wade (born 1962), athlete, runner
- Helen Wadsworth (born 1964), golfer
- Lucy Walter (c.1630–1658), mistress of Charles I
- Melanie Walters (born 1963), actress
- Jo Walton (born 1964), Welsh-Canadian romance and science fiction novelist, author of Tooth and Claw
- Anna Laetitia Waring (1823–1910), poet, hymnist
- Myfanwy Waring (born 1974), actress
- Mary Wynne Warner (1932–1998), mathematician
- Elizabeth Andrew Warren (1786–1864), botanist and marine algolologist
- Sarah Waters (born 1966), novelist, author of Fingersmith
- Elizabeth Watkin-Jones (1877–1966), children's author
- Megan Watts Hughes (1842–1907), singer, songwriter, scientist
- Alis Wen (born 1520), Welsh-language poet
- Olive Wheeler (1886–1963), educationist, psychologist and university lecturer
- Susie Wild (born 1979), novelist, journalist, editor, strong connections with Wales
- Alis Wen (fl. 16th century), poet
- Anna Williams (1706–1783), poet
- Betty Williams, (born 1944), politician
- Buddug Williams (active since the 1990s), actress
- Grace Williams (1906–1977), composer
- Jane Williams (1806–1885), biographer, non-fiction works, many about Wales
- Margaret Lindsay Williams (1888–1960), portrait painter
- Maria Jane Williams (c.1794–1873), musician, folklorist
- Annie Williams (born 1942), still life watercolour painter who grew up in Wales
- Sian Williams (born 1990), rugby union player
- Sue Williams (born 1956), visual artist
- Saint Winifred (fl. 7th century), saint
- Bethan Witcomb (active since 2010), actress
- Katy Wix (born 1980), actress, comedian
- Leanne Wood (born 1971), politician
- Mary Myfanwy Wood (1882–1967), missionary
- Frances Elizabeth Wynne (1835–1907), painter, sketcher
- Sarah Edith Wynne (1849–1897), soprano
Y
- Paula Yates (1959–2000), television presenter, non-fiction writer
- Megan York (born 1987), rugby union player
Z
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