Brendan Toal (born 1 December 1940) is a former Irish Fine Gael politician. He was Teachta Dála (TD) for the Monaghan constituency from 1973 to 1977.
A lawyer by profession, Toal was elected to the 21st Dáil at a by-election in November 1973, to fill a vacancy caused by the election as President of Monaghan's Fianna Fáil TD Erskine H. Childers. The constituency was abolished in boundary changes for the 1977 general election, and Toal was defeated in the new Cavan–Monaghan constituency. He did not stand for the Dáil again.