| 721st Naval Air Group | |
|---|---|
 | |
| Active | October 1, 1944–August 21, 1945 |
| Country |  Empire of Japan |
| Allegiance | Empire of Japan |
| Branch |  Imperial Japanese Navy |
| Type | Naval aviation unit |
| Role | Bomber, manned bomb, fighter |
| Size | 72 (1 October 1944) |
| Part of | Yokosuka Naval District Combined Fleet 11th Air Flotilla 5th Air Fleet |
| Garrison/HQ | Hyakurigahara, Japan Komatsu, Japan Kōnoike, Japan Kanoya, Japan Tomitaka, Japan Matsuyama, Japan Kan'onji, Japan Misawa, Japan Chitose, Japan |
| Nickname(s) | 神雷部隊 Jinrai Butai (God thunder Corps) |
| Aircraft flown | G4M Type 1 "Betty" MXY7 Ohka "Baka" A6M Type 0 "Zeke" D4Y Suisei "Judy" |
| Engagements | World War II |
| Insignia | |
| Identification symbol | ヨF (YoF, October 1944) 721 (November 1944) 721 K (708th AS, 1945) 神 (Jin, fighter squadron, 1945) |
The 721st Naval Air Group (第七二一海軍航空隊, Dai Nana-Futa-Hito Kaigun Kōkūtai) was an aircraft and airbase garrison unit of the Imperial Japanese Navy (IJN) during the Pacific campaign of World War II. This air group was organised for use in suicide attacks. It was otherwise known as the God Thunder Corps (神雷部隊, Jinrai Butai).