North Tyrone by-election, 1911

The North Tyrone by-election was a Parliamentary by-election. North Tyrone returned one Member of Parliament to the House of Commons of the United Kingdom, elected by the first past the post voting system. The election was held on 6 October 1911.

The by-election was held due to the incumbent Liberal MP, Redmond John Barry, becoming Lord Chancellor of Ireland, requiring him to cease membership of the House of Commons. Barry had been Liberal MP for the seat of since the Tyrone North by-election, 1907 when he successfully defended the seat for the Liberals.

Unlike most Irish seats, the Liberals rather than the Irish Nationalists, were the standard bearers for Irish Home Rule. Close results were part of the seat's tradition with the Unionists winning three times and the Liberals six times. Barry's hold on the seat had always been tenuous; His three successful defences were all in two-party contests with an Irish Unionist, where he had never polled higher than the 51.1% of the vote he polled last time;

The issue of Irish Home Rule was not prominent in the campaign, even though the Liberal Government, supported by the Irish Nationalists, was about to embark on the 3rd Irish Home Rule Bill. This was because in Tyrone, the electorate had long since made up its mind on this issue. Instead, the Unionist campaign sought to weaken the ties between the Liberal candidate and his would be supporters. A number of the Unionist influenced newspapers attempted to undermine Russell's campaign, by attacking him personally. They referred to the Liberal candidate as a 'Nationalist' and a turncoat. He was even referred to as a political Carpet-bagger, despite the fact that he was a local man.

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