217th Brigade was a Home Service formation of the British Army during the First and the Second World Wars.

217th Brigade was formed in late 1916 as part of 72nd Division, which had the dual role of training men for overseas drafts and providing forces for home defence.

[1] The original second line Territorial Force battalions of the Northumberland Fusiliers were transferred to the brigade on 14 November 1916 from 188th Brigade, which had been part of 63rd (2nd Northumbrian) Division until that division was disbanded in July 1916.

Disbandment began in January 1918 and its last elements dispersed on 8 April 1918.

[6] The 217th Brigade transferred to the Durham and North Riding County Division when that formation was created on 12 March 1941.