 Argentina
Argentine Air Force - Postwar - two aircraft.

 Belgium
Aviation Militaire Belge
5me Escadrille de Chasse
Groupe de Chasse
10me Escadrille de Chasse
 Brazil
Brazilian Air Force - Postwar - 15 aircraft.

 Brazil
 Chile
Chilean Air Force (One aircraft)
 Czechoslovakia
Czech Air Force - Postwar - 70–80 aircraft
 Estonia
Estonian Air Force - Postwar, (Two aircraft)
 Finland
Finnish Air Force - Postwar, (One aircraft)
 France
Aéronautique Militaire
Lafayette Escadrille
Aéronautique Navale
 Greece
Hellenic Air Force
 Kingdom of Italy
Corpo Aeronautico Militare (214 aircraft)
Regia Aeronautica - Postwar
 Japan
 Netherlands
(One aircraft)
 Peru
(Two aircraft)
 Poland
Polish Air Force - (Post-war)
 Portugal
Portuguese Air Force
 Romania
Royal Romanian Air Force
 Russian Empire
Imperial Russian Air Service - (43 aircraft)
 Serbia
 Soviet Union
Soviet Air Force - Postwar.

 Siam (Thailand)
Royal Thai Air Force
 Ukrainian People's Republic
Ukrainian People's Republic Air Fleet (two aircraft)
 United Kingdom
(185 aircraft)
Royal Air Force
Royal Flying Corps
No.
17 Squadron RFC
No.
19 Squadron RFC
No.
23 Squadron RFC
No.
30 Squadron RFC
No.
63 Squadron RFC
No.
72 Squadron RFC
No.
92 Squadron RFC
 Uruguay
(Two aircraft - Fighter Squadron)
 United States
Aviation Section, U.S. Signal Corps
United States Army Air Service (189 aircraft)
93rd Aero Squadron
103rd Aero Squadron
 Yugoslavia
Yugoslav Royal Air Force - Postwar
Hungarian Soviet Republic
Hungarian Red airforce -
Postwar
 Argentina
Argentine Air Force - Postwar - two aircraft.
 Belgium
Aviation Militaire Belge
5me Escadrille de Chasse
Groupe de Chasse
10me Escadrille de Chasse
 Brazil
Brazilian Air Force - Postwar - 15 aircraft.
 Brazil
 Chile
Chilean Air Force (One aircraft)
 Czechoslovakia
Czech Air Force - Postwar - 70–80 aircraft
 Estonia
Estonian Air Force - Postwar, (Two aircraft)
 Finland
Finnish Air Force - Postwar, (One aircraft)
 France
Aéronautique Militaire
Lafayette Escadrille
Aéronautique Navale
 Greece
Hellenic Air Force
 Kingdom of Italy
Corpo Aeronautico Militare (214 aircraft)
Regia Aeronautica - Postwar
 Japan
 Netherlands
(One aircraft)
 Peru
(Two aircraft)
 Poland
Polish Air Force - (Post-war)
 Portugal
Portuguese Air Force
 Romania
Royal Romanian Air Force
 Russian Empire
Imperial Russian Air Service - (43 aircraft)
 Serbia
 Soviet Union
Soviet Air Force - Postwar.
 Siam (Thailand)
Royal Thai Air Force
 Ukrainian People's Republic
Ukrainian People's Republic Air Fleet (two aircraft)
 United Kingdom
(185 aircraft)
Royal Air Force
Royal Flying Corps
No. 17 Squadron RFC
No. 19 Squadron RFC
No. 23 Squadron RFC
No. 30 Squadron RFC
No. 63 Squadron RFC
No. 72 Squadron RFC
No. 92 Squadron RFC
 Uruguay
(Two aircraft - Fighter Squadron)
 United States
Aviation Section, U.S. Signal Corps
United States Army Air Service (189 aircraft)
93rd Aero Squadron
103rd Aero Squadron
 Yugoslavia
Yugoslav Royal Air Force - Postwar
Hungarian Soviet Republic
Hungarian Red airforce -
Postwar
SPAD S.VII