The 1919 North Londonderry by-election was held on 4 March 1919.
The by-election was held due to the resignation of the incumbent Irish Unionist MP, Hugh Anderson.
It was won by the Irish Unionist candidate Hugh T.
[1] Barrie's Sinn Féin opponent, Patrick McGilligan, would later become Irish Minister for External Affairs.
This article about a by-election to the Parliament of the United Kingdom in Ireland is a stub.