| Unit Name: | 252nd Naval Air Group |
| Dates: | 1 November 1942 – September 1945 |
| Country: | Empire of Japan |
| Allegiance: | Empire of Japan |
| Branch: | Imperial Japanese Navy |
| Type: | Naval aviation unit |
| Role: | Air superiority Fighter aircraft support |
| Size: | 45-65 aircraft |
| Garrison: | Tateyama Air Base Misawa Air Base |
| Equipment: | A6M Zero |
| Equipment Label: | Aircraft flown |
| Battles: | World War II |
was a fighter aircraft unit of the Imperial Japanese Navy (IJN) during the Pacific campaign of World War II. The unit was formed on 1 November 1942 by separating the fighter squadron from the Genzan Air Group.
The unit, equipped with A6M Zero fighter aircraft, was involved in several major battles in the south and central Pacific from 1942 to 1943, including the Battle of the Bismarck Sea.
After being annihilated in combat over the Marshall Islands in 1943, the unit was reconstituted in Japan in February 1944 and helped defending the home islands against Allied offensives, including B-29 bomber attacks from the Mariana Islands.
. Ikuhiko Hata . Yasuho . Izawa . Gorham, Don Cyril (translator) . 1989 . Japanese Naval Aces and Fighter Units in World War II . Naval Institute Press . Annapolis, Maryland . 0-87021-315-6 . registration .