Denis Cregan (born 4 May 1940) is an Irish publican and former Fine Gael party politician from Cork, who served for 17 years as a senator.^[1]

A former branch vice-president of the Irish Transport and General Workers' Union, Cregan was a long-standing member of Cork City Council from 1979 to 2009, and was Lord Mayor of Cork from 1991 to 1992.^[2] He had unsuccessfully contested the Cork South-Central constituency at the 1981 and February 1982 general elections. He stood in the 1982 Seanad elections, winning a seat on the Labour Panel, which he held until his defeat in the 1989 elections to the 19th Seanad Éireann.^[3]

He was unsuccessful again when he stood again in Cork South-Central at the 1992 general election, but in the subsequent elections to the 20th Seanad he was re-elected on the Labour Panel. He was re-elected in 1997 to the 21st Seanad, but was narrowly defeated in the 2002 elections to the 22nd Seanad.^[3]

At the 2004 local elections, he held his seat on Cork City Council, though with a margin of less than 50 votes over the Sinn Féin candidate.^{[citation needed]}

In January 2009 he announced his retirement from politics and did not contest the 2009 local elections.^[4]

He is well known in Cork for his chain of Fish and chip shops called Dino's.^{[citation needed]}