Austria, China, Hungary, Italy, Paraguay (5 C.R.32ter), Spain, and Venezuela used the C.R.32.
Spanish Civil War
The C.R.32bis was used in the Spanish Civil War.
The Regia Aeronautica had ~400 C.R.32s at the end of 1939.
The Fiat C.R.32 was used in the Greek and East African campaigns as close support and night fighters. Afterwards they were used primarily in training.
Hispano-Suiza license built the C.R.32 from 1940 to 1943.