2017–18 PSA World Series
The PSA World Series 2017–18 is a series of men's and women's squash tournaments which are part of the Professional Squash Association World Tour for the end of 2017 and the start of 2018. The PSA World Series tournaments are some of the most prestigious events on the men's and women's tour. The best-performing players in the World Series events qualify for the annual 2018 Men's PSA World Series Finals and 2018 Women's PSA World Series Finals tournament.
PSA World Series Ranking Points
PSA World Series events also have a separate World Series ranking. Points for this are calculated on a cumulative basis after each World Series event. The top eight players at the end of the calendar year are then eligible to play in the PSA World Series Finals.Men's
Tournaments
Standings
‡Marwan El Shorbagy withdraws to the World Series Finals on 30 May due to a hamstring injury.Bold – Players qualified for the final
| Final tournament | Country | Location | Prize money | Date | 2017–18 World Series Champion |
| PSA World Series Finals 2018 | Dubai | $160,000 | 5–9 June 2018 |  Mohamed El Shorbagy |
Women's
Tournaments
Standings
Bold – Players qualified for the final| Final tournament | Country | Location | Prize money | Date | 2017–18 World Series Champion |
| PSA World Series Finals 2018 | Dubai | $160,000 | 5–9 June 2018 | Nour El Sherbini |