Piotr Robert Haren (born 2 May 1970) is a former Danish footballer of Polish descent. He most notably represented BK Frem, Lyngby Boldklub and F.C. Copenhagen. He started his career as forward, but Lyngby Boldklub manager Benny Lennartsson made him into a defender. He is the son of , who represented Widzew Łódź and B93.