South Donegal (UK Parliament constituency)

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

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

Boundaries
This constituency comprised the southern part of County Donegal, consisting of the baronies of Banagh and Tirhugh.

Members of Parliament
Note:-
 * 1 Not an election, but the date of a party change. The Irish Parliamentary Party had been created in 1882, on the initiative of Charles Stewart Parnell's Irish National League. Both the IPP and the INL split into Parnellite and Anti-Parnellite factions, in December 1890. The Parnellites remained members of the Irish National League after the split and the Anti-Parnellites organised the Irish National Federation in March 1891. The two organisations and the United Irish League merged in 1900, to re-create the Irish Parliamentary Party.
 * 2 Date of polling day. The result was declared on 28 December 1918, to allow time for votes cast by members of the armed forces to be included in the count.