Thomas Aloysius Finlay (11 October 1893 – 22 November 1932) was an Irish Cumann na nGaedheal politician and Senior Counsel who served as a Teachta Dála (TD) for the Dublin County constituency from 1930 to 1932. In his short but varied career he had also been a District Justice and a senior official in the Department of Justice. He was elected to Dáil Éireann as a Cumann na nGaedheal TD for the Dublin County constituency at the 1930 by-election, caused by the death of Bryan Cooper of Cumann na nGaedheal. He was re-elected at the 1932 general election but died of typhoid the following November, aged 39. No by-election was held for his seat. His children included William Finlay (1921–2010), who was a governor of the Bank of Ireland, and Thomas Finlay, who was a Chief Justice of Ireland.