1919 North Londonderry by-election

The North Londonderry by-election of 1919 was held on 4 March 1919. The by-election was held due to the resignation of the incumbent Irish Unionist MP, Hugh Alfred Anderson. It was won by the Irish Unionist candidate Hugh Thom Barrie. Barrie's Sinn Féin opponent, Patrick McGilligan, would later become Irish Minister for External Affairs.

By-Election 4 March 1919: North Londonderry

Party		Candidate	Votes	%	±%
	Irish Unionist	Hugh Thom Barrie	9,933		N/A
	Sinn Féin	Patrick McGilligan	4,333		N/A
Majority					N/A
Turnout			21,306		N/A
	Irish Unionist hold		Swing	N/A