Dominick Cafferky (died 15 March 1971) was an Irish Clann na Talmhan politician. A farmer, from Kilkelly County Mayo, he was first elected to Dáil Éireann at the 1943 general election as a Clann na Talmhan Teachta Dála (TD) for the Mayo South constituency. He was re-elected at the 1944 general election but lost his seat at the 1948 general election. He re-gained his seat at the 1951 general election but again lost his seat at the 1954 general election. He was an unsuccessful candidate at the 1957 and 1961 general elections.
In the early 1940s, Cafferky was imprisoned with Bernard Commons for one month in Sligo Jail for his part in the Mayo land agitation, after which he won a Dáil seat.