Denis Heskin (17 February 1899 – 30 April 1975) was an Irish Clann na Talmhan politician.
A farmer by profession, he was first elected to Dáil Éireann as a Clann na Talmhan Teachta Dála (TD) for the Waterford constituency at the 1943 general election.
He was re-elected at the 1944 general election but lost his seat at the 1948 general election.