13 May - "This Is Love", performed by Demy, represents Greece in the Eurovision Song Contest.[5]
June
12 June – The 6.3 MwLesbos earthquake shook the area with a maximum Mercalli intensity of IX (Violent), killing one and injuring ten.
July
21 July – The 6.6 MwAegean Sea earthquake shook the area with a maximum Mercalli intensity of VII (Very strong), killing two and injuring 480.[6]
September
9 September - The Greek FIBA team reaches the quarterfinals of the FIBA EuroBasket 2017, losing to Russia 69-74 in the process.[7]
November
The Greek association football team reaches the playoffs of FIFA World Cup qualification, losing to Croatia 4-1 on aggregate in the process.[8]
15 November – In one of the greatest disasters in the area in decades, flash floods hit Western Attica, particularly the Athens suburb of Mandra, killing twenty-three.[9][10]