Martin Conlon (1879 – 23 January 1966) was an Irish politician. He was elected to Dáil Éireann as a Cumann na nGaedheal Teachta Dála (TD) for the Roscommon constituency at the 1926 by-election caused by the resignation of Henry Finlay of Cumann na nGaedheal. He was re-elected at the June 1927, September 1927 and 1932 general elections. He lost his Dáil seat at the 1933 general election. He was elected to the 3rd Seanad in 1938 on the Industrial and Commercial Panel. He was defeated at the 1943 Seanad election.