Declan O'Sullivan (born 18 December 1983) is an Irish former sportsperson. He last played Gaelic football with his local club Dromid Pearses, his divisional side South Kerry and at senior level for the Kery county team between 2003 and his retirement in 2014. O'Sullivan captained Kerry to back-to-back All-Ireland titles in 2006 and 2007. He is regarded as one of the all-time great centre forwards.