Osman Özköylü (born 26 August 1971 in Aydin) is a retired Turkish footballer and coach who is currently the manager of Boluspor.
He played for Aydinspor (1990–1993), Trabzonspor (1993–2002), Samsunspor (2002–2004), Kayserispor (2004), Kocaelispor (2004–2005), Etimesgut Sekerspor (2005–2006) and Usakspor (2006–2007).
He played for Turkey national football team 13 times and was a participant at the 2000 UEFA European Championship.