The PSA World Series 2015–16 is a series of men's and women's squash tournaments which are part of the Professional Squash Association (PSA) World Tour for the end of the 2015 and the start of the 2016 squash season. 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 2016 Men's PSA World Series Finals and 2016 Women's PSA World Series Finals tournament. Grégory Gaultier won the men's 2016 PSA World Series against Cameron Pilley and Laura Massaro won the women's 2016 PSA World Series against Raneem El Weleily.