Peter Barker is a professional squash player from Essex, England.

Peter has achieved a highest Professional Squash Association (PSA) World Ranking of seventeen and a highest English National Ranking of five.

Peter has won eight PSA World Tour titles; Coastal Contacts Open (2006) , XI Albierto Colombiano De Squash Club El Nogal (2006), VIII Colombian Open (2005), Albierto Internacianal De Sao Paulo (2005), James Barker & Associate Championship (2004), Spear & Jackson Florida State Open (2003), Tech Valley Open (2002) and the Financially Plumb Tournament (2002).

Peter is managed by internationalSPORTgroup™, is part of the England Squash World Class Performance Programme, based in Essex, England and his principal sponsors are Wilson (rackets, clothing, footwear and equipment & luggage) and , e-squash™ (string) and sportdiscount.com™.