The 2017–18 Greek A1 Ethniki was the 36th season of the A1 Ethniki, Greece's premier handball women's league.
A total of 10 teams participated in this year's edition of the Women's A1 Ethniki.
Of these, 8 sides qualified directly from the 2016–17 season, while 2 sides qualified from the A2 Ethniki play-offs: GAS Kamatero and Aris Thessaloniki.
The team that finished in the higher championship play-off place, is going to play the first, second and fifth (if necessary) game of the series at home.
Source: Hellenic Handball Federation