Denis Patrick Leamy (born 27 November 1981 in Cashel, County Tipperary, Republic of Ireland) is a former Irish professional rugby union player. He was a back row forward who could play either Flanker or at Number 8, and occasionally played at inside centre. He ended his club rugby career for Munster in the Pro 12 and Heineken Cup, and internationally for Ireland. He officially announced his retirement in May 2012 due to a long-standing hip injury.