Armi Maria Ratia née Airaksinen (13 July 1912 – 3 October 1979) was the co-founder of the Finnishtextile and clothing company Marimekko Oy.[1] She is among Finland's most famous female entrepreneurs. She was born in Pälkjärvi in Ladoga Karelia.[2] For a detailed biographical article in the context of her Marimekko company, see The National Biography of Finland entry.[2]