I picked this little nugget up from
here
LIST OF MOST PRODUCED AIRCRAFT
AIRCRAFT WITH A PRODUCTION RUN GREATER THAN 5,000 AIRCRAFT.
NUMBERS IN LIST ARE BASED ON NUMBERS IN EACH AIRCRAFT ARTICLE.
Greater than 10,000 aircraft
Name Number produced Nation Notes Production time
Cessna 172 43,000+ United States Still in production. Was also built under license in France 1956-present
Polikarpov Po-2 40,000+ Soviet Union Most produced biplane1929-1959
Ilyushin Il-2 36,183 Soviet Union Most produced combat aircraft. 1941-1945
Messerschmitt Bf 109 35,000 Nazi Germany Most produced fighter. Also made under license in Spain 1937-1956
Cessna 182 25,000+ United States Still in production. Was also built under license in France 1956-present
Cessna 150 23,954 United States Was also built under license in France 1959-1977
Supermarine Spitfire 22,351 United Kingdom 1936-1948
Focke-Wulf Fw 190 20,000+ Nazi Germany 64 produced in France post-war as NC 900 1939-1945
Piper J-3 Cub 19,073 United States 1938-1947
B-24 Liberator 18,482 United States Most-produced heavy bomber 1940-1945