| Office: | Teachta Dála |
| Term Start: | March 1957 |
| Term End: | 26 June 1957 |
| Term Start1: | May 1951 |
| Term End1: | May 1954 |
| Constituency1: | Dublin North-Central |
| Party: | Fianna Fáil |
| Birth Place: | Derry, Ireland |
| Death Date: | 26 June 1957 |
| Death Place: | Dublin, Ireland |
| Children: | 4 |
| Spouse: | Peggy Gallagher |
Colm Gallagher (died 26 June 1957) was an Irish Fianna Fáil politician who was elected twice as Teachta Dála (TD) for Dublin North-Central, in 1951 and in 1957.[1]
His first candidacy was at the 1948 general election, where he was unsuccessful, winning just 3.3% of the first-preference votes and losing his deposit. At the 1951 general election, he tripled his share of the vote and won a second seat for Fianna Fáil in the three-seat constituency.[2]
He lost his seat at the 1954 general election to the Labour Party's Maureen O'Carroll, but defeated her at the 1957 general election.
His death in June 1957, just three months after the general election, triggered a by-election on 14 November, which was won by an independent candidate, Frank Sherwin.
Prior to his involvement in politics, Colm Gallagher was active in the promotion and administration of amateur boxing and served as a referee at European level, including the 1948 and 1952 Summer Olympics (in London and Helsinki respectively).[3] He lived in Glasnevin and was married to Peggy Gallagher; they had three sons and one daughter.