| Office: | Teachta Dála |
| Term Start: | February 1982 |
| Term End: | May 2002 |
| Constituency: | Sligo–Leitrim |
| Birth Name: | Matthew Brennan |
| Birth Date: | 16 October 1936 |
| Birth Place: | County Sligo, Ireland |
| Nationality: | Irish |
| Party: | Fianna Fáil |
| Relatives: | Martin Brennan (uncle) |
Matt Brennan (born 16 October 1936) is a retired Irish Fianna Fáil politician who was a Teachta Dála (TD) for the Sligo–Leitrim constituency.[1] Brennan was first elected to Dáil Éireann on his second attempt at the February 1982 general election and retained his seat until retiring at the 2002 general election.[2]
His father, Peter, was a founding member of Fianna Fáil and his uncle, Martin Brennan, also represented Sligo from 1938 to 1948. Matt Brennan was a member of Sligo County Council between 1974 and 1999, representing the Tubbercurry area.[2]