Category:Members of the House of Commons of Northern Ireland for County Down constituencies

Constituencies:

Ards (1929–1972)

Bangor (1969–1972)

Down (1921–1929)

East Down (1929–1972)

Iveagh (1929–1972)

Lagan Valley (1969–1972)

Larkfield (1969–1972)

Mid Down (1929–1972)

Mourne (1929–1972)

North Down (1929–1972)

South Down (1929–1972)

West Down (1929–1972)