Operators
- Australia
- Royal Australian Air Force
- No. 21 Squadron RAAF
- No. 24 Squadron RAAF
- No. 25 Squadron RAAF (ex-Dutch)
- No. 43 Squadron RAAF
- No. 85 Squadron RAAF (ex-25 Sqn.)
- No. 453 Squadron RAAF
- No. 452 Squadron RAAF
- No. 1 PRU RAAF (ex-Dutch, Photo Reconnaissance Unit)
- Finland
- Finnish Air Force
- No. 24 Squadron (1941–1944)
- No. 26 Squadron (1944–1945)
- Indonesia
- In 1942, Indonesian pro-independence guerrillas captured a small number of aircraft at numerous air bases during the invasion of Japan to Dutch East Indies and saved them in remote areas for the preparation for incoming war. Most aircraft were destroyed in military conflicts between the Netherlands and the newly proclaimed-Republic of Indonesia during the Indonesian National Revolution of 1945–1949.
- Japan
- Captured Buffalos were repaired and test flown, both in Japanese markings, and - starring in recreated combat footage - in incorrect RAF markings.
- Netherlands
- Militaire Luchtvaart KNIL
- Vliegtuiggroep IV, 3e Afdeling (3-VLG-IV: 3rd Squadron, IV Group)
- Vliegtuiggroep V, 1e Afdeling (1-VLG-V)
- Vliegtuiggroep V, 2e Afdeling (2-VLG-V, helped defend Singapore)
- Vliegtuiggroep V, 3e Afdeling (3-VLG-V)
- New Zealand
- Royal New Zealand Air Force
- No. 14 Squadron RNZAF
- No. 488 Squadron RNZAF
- United Kingdom
- Royal Air Force
- No. 60 Squadron RAF
- No. 67 Squadron RAF (ex-60 Sqn., most pilots were RNZAF)
- No. 71 Squadron RAF
- No. 146 Squadron RAF (ex-67 Sqn.)
- No. 243 Squadron RAF (most pilots were RNZAF)
- Royal Navy Fleet Air Arm
- 711 Naval Air Squadron
- 759 Naval Air Squadron
- 760 Naval Air Squadron
- 804 Naval Air Squadron
- 805 Naval Air Squadron
- 813 Naval Air Squadron
- 885 Naval Air Squadron
- United States
- United States Army Air Force
- 5th Air Force, Australia (ex-Dutch)
- United States Marine Corps
- VMF-211, based at Palmyra Atoll
- VMF-221, used in Battle of Midway
- United States Navy
- VF-2
- VF-3
- VS-201
- Trainers at Pensacola
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