World War II Allied names for Japanese aircraft

The World War II Allied names for Japanese aircraft were reporting names, often described as codenames, given by Allied personnel to Imperial Japanese aircraft during the Pacific campaign of World War II. The names were used by Allied personnel to identify aircraft operated by the Japanese for reporting and descriptive purposes. Generally, Western men's names were given to fighter aircraft, women's names to bombers, transports, and reconnaissance aircraft, bird names to gliders, and tree names to trainer aircraft.

The use of the names, from their origin in mid-1942, became widespread among Allied forces from early 1943 until the end of the war in 1945. Many subsequent Western histories of the war have continued to use the names.

During the first year of the Pacific War beginning on 7 December 1941, Allied personnel often struggled to quickly, succinctly, and accurately identify Japanese aircraft encountered in combat. They found the Japanese designation system bewildering and awkward, as it allocated two names to each aircraft. One was the manufacturer's alphanumeric project code, and the other was the official military designation, which consisted of a description of the aircraft plus the year it entered service. For example, the military designation of the Mitsubishi A5M fighter was the "Navy Type 96 Carrier Fighter". Type 96 meant that the aircraft had entered service in Imperial year 2596, equivalent to Gregorian calendar year 1936. Other aircraft, however, which had entered service the same year carried the same type number; aircraft such as the Type 96 Carrier Bomber and the Type 96 Land Attack Bomber. Adding to the confusion, the US Army and US Navy each had their own different systems for identifying Japanese aircraft.

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