54.198°N 6.488°W / 54.198; -6.488

South Armagh was a constituency of the Parliament of Northern Ireland.

South Armagh was a county constituency comprising the southern part of County Armagh. It was created when the House of Commons (Method of Voting and Redistribution of Seats) Act (Northern Ireland) 1929 introduced first-past-the-post elections throughout Northern Ireland. South Armagh was created by the division of Armagh into four new constituencies. The constituency survived unchanged, returning one Member of Parliament, until the Parliament of Northern Ireland was temporarily suspended in 1972, and then formally abolished in 1973.^{[citation needed]}

The seat was made up from parts of the rural districts of Armagh and Newry, with the town of Keady.^[1]

The seat had a significant Nationalist majority, but Labour candidates were sometimes polled well.^[2]

The remainder of contested elections involved candidates of different Nationalist persuasions.

At the 1938 Northern Ireland general election, Paddy Agnew was elected unopposed.^[2]

At the 1953 Northern Ireland general election, Charles McGleenan was elected unopposed.^[2]