| Office: | Senator |
| Term Start: | 11 December 1922 |
| Term End: | 20 October 1923 |
| Party: | Labour Party |
| Birth Date: | 22 August 1879 |
| Birth Place: | County Sligo, Ireland |
| Death Place: | Geneva, Switzerland |
| Nationality: | Irish |
| Spouse: | Hannah MacPartlin |
| Children: | 9 |
Thomas MacPartlin (22 August 1879 – 20 October 1923) was an Irish Labour Party politician.[1] He was a member of Seanad Éireann from 1922 to 1923.[2]
A trade union official from County Sligo, he was a member of the Amalgamated Society of Carpenters and Joiners union and served as the president of the Irish Trades Union Congress (ITUC) in 1917. He was a signatory of the 1914 ITUC manifesto opposing inclusion of a partition option in the draft home rule bill and asserting workers' right to arm and fight for 'economic freedom'. He was elected to the Free State Seanad for 9 years at the 1922 election.[3]
He died in office in October 1923, while on a visit to Geneva.[4] The by-election to fill the vacancy was held on 28 November 1923, and was won by Thomas Foran of the Labour Party.