South Tipperary was a UK Parliament constituency in Ireland, returning one Member of Parliament 1885–1922.

Prior to 1885 the area was part of the Tipperary. From 1922, on the establishment of the Irish Free State, it was not represented in the UK Parliament.

This constituency comprised the southern part of County Tipperary. The seat was defined under the Redistribution of Seats Act 1885 as comprising the baronies of Clanwilliam, and Iffa and Offa West. The seat was unchanged under the Redistribution of Seats (Ireland) Act 1918.

• Leigh Rayment's Historical List of MPs – Constituencies beginning with "T" (part 2)
• The Parliaments of England by Henry Stooks Smith (1st edition published in three volumes 1844–50), 2nd edition edited (in one volume) by F.W.S. Craig (Political Reference Publications 1973)
• Walker, Brian M., ed. (1978). Parliamentary Election Results in Ireland, 1801–1922. Royal Irish Academy.