Mary Reynolds (10 October 1889 – 29 August 1974) was an Irish politician, farmer and grocer from County Leitrim. She was first elected to Dáil Éireann as a Cumann na nGaedheal Teachta Dála (TD) at the 1932 general election for the Leitrim–Sligo constituency. Her husband Patrick Reynolds had been a TD for the same constituency in the 6th Dáil, but was fatally shot during the 1932 general election campaign. The election in Leitrim–Sligo was then postponed, and she won the seat, serving in the Dáil for 25 years.