90th Brigade
90th Brigade may refer to:
British India
Spain
- 90th Mixed Brigade, see Mixed brigade ยง 1st to 100th
United Kingdom
- 90th Brigade (United Kingdom)
- 90th Brigade, Royal Field Artillery, British Army unit in World War I
- 90th (City of London) Brigade, Royal Field Artillery, British Army unit after World War I
United States
- 90th Sustainment Brigade
- 90th Troop Command, a brigade-sized unit