Denis Heaslip (born 1934) is an Irish retired hurler who played as a right wing-forward for the Kilkenny senior team.
Born in Knocktopher, County Kilkenny, Heaslip first arrived on the inter-county scene when he first linked up with the Kilkenny senior team, making his debut in the 1957 championship. During his career Heaslip won two All-Ireland medals, three Leinster medals and one National Hurling League medal. He was an All-Ireland runner-up on two occasions.
Heaslip also represented the Leinster inter-provincial team on a number of occasions, winning one Railway Cup medal. At club level he played with Knocktopher.
His retirement came following Kilkenny's defeat by Tipperary in the 1964 All-Ireland final.
The 1957 Championship featured in The 1958 film Rooney where the main character in the film wore a Kilkenny Jersey in the line up. During the film it depicts a goal that was "scored" by the main character (Rooney) this was in fact Denis Heaslip's goal.Kilkenny
All-Ireland Senior Hurling Championship (2): 1957, 1963
Leinster Senior Hurling Championship (3): 1957, 1959, 1964
National Hurling League (1): 1961-62
Railway Cup (1): 1962