7th (Merionethshire and Montgomeryshire) Battalion, Royal Welch Fusiliers

5th Volunteer Bn, South Wales Borderers
7th (Merionethshire & Montgomeryshire) Bn, Royal Welch Fusiliers
636 (Royal Welch) LAA Rgt, RA
Regimental cap badge of the Royal Welch Fusiliers
Active1 April 1908–1 April 1971
Country United Kingdom
Branch Territorial Force
RoleInfantry
Anti-aircraft artillery
Size1-3 Infantry battalions
1 Artillery regiment
Part of53rd (Welsh) Division
Garrison/HQNewtown
Engagements
Commanders
Notable
commanders
Sir Edward Pryce-Jones, 1st Baronet

The 7th (Merionethshire & Montgomeryshire) Battalion, Royal Welch Fusiliers, was a Welsh unit of Britain's Territorial Force. First raised in 1897, it fought at Gallipoli and in Palestine during World War I, and in the campaign in North West Europe during World War II. A duplicate battalion was converted to the paratroop role. Postwar the battalion was converted into anti-aircraft artillery, then reverted to infantry in 1956 after it amalgamated with a neighbouring unit.