Operators
- France
- Greece
- Hellenic Air Force
- Italy
- Regia Aeronautica
- Japan
- Poland - 1 aircraft
- Russia / Soviet Union
- Imperial Russian Air Service
- Soviet Air Force - Taken over from the Imperial Russian Air Force.
- Serbia
- Bulgaria
- Bulgarian Air Force - One aircraft captured in 1917, former N-5346
- Thailand
- Royal Thai Air Force
- Turkey
- Turkish Air Force
- United Kingdom
- Royal Flying Corps
- No. 1 Squadron RFC
- No. 14 Squadron RFC
- No. 17 Squadron RFC
- No. 29 Squadron RFC
- No. 40 Squadron RFC
- No. 60 Squadron RFC
- No. 67 Squadron RFC
- No. 111 Squadron RFC
- No. 113 Squadron RFC
- United States
- American Expeditionary Force
- United States Army Air Service
- Uruguay
- Kingdom of Yugoslavia
- Royal Yugoslav Air Force - Postwar.
Read more about this topic: Nieuport 27