Operators
- Albania
- Albanian Air Force received 12 aircraft in 1951.
- Bulgaria
- Bulgarian Air Force
- People's Republic of China
- People's Liberation Army Air Force
- France
- Armée de l'Air
- Normandie-Niemen squadron
- Hungary
- Hungarian Air Force received aircraft in 1949. The type's Hungarian name was "Vércse" (Kestrel).
- Mongolia
- Mongolian People's Army Aviation received 34 aircraft in late June 1945.
- North Korea
- North Korean Air Force
- Poland
- Air Force of the Polish Army
- Polish Air Force operated several aircraft from 1947 to 1953.
- Polish Navy
- Soviet Union
- Soviet Air Force
- Yugoslavia
- SFR Yugoslav Air Force – 16 Yak-9T, 40 Yak-9P, 47 Yak-9D/M and 68 Yak-9U aircraft in 1944-1950/1960
- 111th Fighter Aviation Regiment (1947–1948)
- 112th Fighter Aviation Regiment (1947–1948)
- 94th Fighter Aviation Regiment (1948–1952)
- 116th Fighter Aviation Regiment (1948–1950)
- 117th Fighter Aviation Regiment (1948–1950)
- 141st Training Aviation Regiment (1952–1953)
- 2nd Training Aviation Regiment (1946–1948)
- 101st Fighter-Training Aviation Regiment (1948–1950)
- 103rd Reconnaissance Aviation Regiment (1950–1951)
- 104th Training Aviation Regiment (1948–1950)
- Training Squadron of 32nd Aviation Division (1953–1959)
- Training Squadron of 39th Aviation Division (1953–1959)
- Training Squadron of 44th Aviation Division (1953–1954)
Read more about this topic: Yakovlev Yak-9