17 Sector RAF is a former Royal Air Force Sector that was operational during both the First and the Second World Wars.

On 19 August 1916, ARS formed at Gosport, the wing was transferred to Southern Group Command on 10 January 1917.

8 Group RAF on the day the Royal Air Force was born on 1 April 1918.

7 Group RAF on 13 May 1918 and disbanded on 12 August 1918.

17 (Fighter) Sector was formed on 12 May 1944 at RAF Kenley controlling: The sector moved to RAF Old Sarum on 6 June 1944, before moving to B.2 Crepon where the sector disbanded on 12 July 1944.