Kieran Crotty (born 30 August 1930) is a former Irish Fine Gael politician who served for twenty years as Teachta Dála (TD) for the Carlow–Kilkenny constituency.
Crotty was first elected to the 19th Dáil at the 1969 general election. His father Patrick Crotty was a TD for Carlow–Kilkenny from 1948 to 1969. He was re-elected six times, at the 1973, 1977, 1981, February 1982, November 1982 and 1987 general elections. He did not contest the 1989 general election.
He was elected as Mayor of Kilkenny for six one-year-terms between 1970 and 1995.