1918 East Tyrone by-election

{{Short description|UK Parliamentary by-election}}

{{Use dmy dates|date=August 2019}}

{{EngvarB|date=August 2019}}

The 1918 East Tyrone by-election was held on 3 April 1918. The by-election was held due to the resignation of the incumbent Irish Parliamentary Party MP, William Redmond. It was won by the Irish Parliamentary candidate Thomas Harbison.{{Rayment-hc|date=May 2021}}

Redmond had resigned in order to contest the Waterford City by-election which had become vacant when his father, John Redmond, had died. The Sinn Féin candidate was Seán Milroy. The by-election was the last in a short string of by-elections where it seemed that the more moderate nationalists were regaining ground from Sinn Féin before being virtually wiped out in the 1918 United Kingdom general election in Ireland.

{{Election box begin |

|title=By-election 3 April 1918: East Tyrone}}

{{Election box winning candidate with party link|

|party = Nationalist Party (Ireland)

|candidate = Thomas Harbison

|votes = 1802

|percentage = 59.6

|change = +8.4

}}

{{Election box candidate with party link|

|party = Sinn Féin

|candidate = Seán Milroy

|votes = 1,222

|percentage = 40.4

|change = New

}}

{{Election box majority|

|votes = 580

|percentage = 19.2

|change = +16.8

}}

{{Election box turnout|

|votes = 3,024

|percentage = 43.9

|change = -49.2

}}

{{Election box hold with party link|

|winner = Nationalist Party (Ireland)

|swing =

}}

{{Election box end}}