| Unit Name: | 4th Squadron |
| Native Name: | 第4飛行隊 |
| Dates: | February 1, 1957 |
| Country: | Japan |
| Branch: | Japan Air Self-Defense Force |
| Command Structure: | Central Air Defense Force, 6th Air Wing |
| Garrison: | Komatsu Air Base |
| Colours: | --> |
| Colours Label: | --> |
| Disbanded: | June 30, 1975 |
| Aircraft Fighter: | North American F-86F Sabre |
The 4th Squadron was a squadron of the 6th Air Wing of the Japan Air Self-Defense Force based at Komatsu Air Base, in Ishikawa Prefecture, Japan. It was equipped with North American F-86F Sabre aircraft.[1]
On February 1, 1957 (the same day as the 5th Squadron) the squadron was formed at Hamamatsu Air Base in Shizuoka Prefecture as part of the 2nd Air Wing. Six months later it transferred to Chitose Air Base in Hokkaido Prefecture. In 1961 it transferred to Komatsu in Ishikawa Prefecture. It was temporarily based at Tsuiki Air Base in Fukuoka Prefecture in 1973.
It was disbanded on June 20, 1975, and was replaced by the 303rd Squadron equipped with the McDonnell Douglas F-4EJ Phantom II.[1] At that time the type of aircraft operated by a Japanese fighter squadron was linked to the type of aircraft operated. Squadrons 1-11 were F-86F squadrons.