Mayo South–Roscommon South (Dáil constituency)

Mayo South–Roscommon South
Former Dáil constituency
Former constituency
Created1921
Abolished1923
Seats4
Local government areas
Created from
Replaced by

Mayo South–Roscommon South was a parliamentary constituency represented in Dáil Éireann, the lower house of the Irish parliament or Oireachtas from 1921 to 1923. The constituency elected 4 deputies (Teachtaí Dála, commonly known as TDs) to the Dáil, on the system of proportional representation by means of the single transferable vote (PR-STV).