Fieseler Fi.156 Storch/MS.500 Criquet

Australia
- - Military
Bulgaria
- - Other
Bulgaria
- - Military
Czechoslovakia
- - Military
- - Other
Finland
- - Military
Finland
- - Military
French Republic
- - Military
- - Other
Germany (Nazi)
- - Military
- - Other
Hungary
- - Military
Hungary
- - Military
Italian Republic
- - Military
Italy (fascists)
- - Military
- - Other
Kingdom of Cambodia (1953–1970)
- - Military
Kingdom of Sweden
- - Military
Laos
- - Military
Lebanese Republic
- - Military
Norway
- - Military
Poland
- - Military
- - Other
Republic of Vietnam (1955-1975)
- - Military
  - - Vietnam Air Force (VNAF)
    - - 1st Air Observation Squadron
Romania
- - Military
Romania
- - Military
Slovakia
- - Military
Spain
- - Military
Spain (Nationalists)
- - Military
State of Vietnam (1949-1955)
- - Military
  - - Vietnam Air Force
    - - 1 Groupe Artillerie Observation (1 GAO)
Switzerland
- - Airlines
  - - Swissair
- - Military
United Kingdom
- - Military
United States of America
- - Military
USSR/Russia
- - Other
Yugoslavia
- - Military
Yugoslavia
- - Military