South Mayo (UK Parliament constituency)

South Mayo
Former County constituency for the House of Commons
1885–1922
Number of members	One
Created from	Mayo

South Mayo was a parliamentary constituency in Ireland, which returned one Member of Parliament (MP) to the House of Commons of the Parliament of the United Kingdom from 1885 to 1922.

Prior to the 1885 general election the area was part of the two-seat Mayo constituency. From 1922 it was not represented in the UK Parliament.

This constituency comprised the southern part of County Mayo.