| Self Defense Fleet | |
|---|---|
| 自衛艦隊 | |
 Self Defense Fleet emblem | |
| Active | 1 July 1954 – present |
| Country | Japan |
| Allegiance | Japan |
| Branch | Japan Maritime Self-Defense Force |
| Role | Fleet |
| Size | approx 24,000 people |
| Part of | Japan Maritime Self-Defense Force |
| Garrison/HQ | Yokosuka |
| Anniversaries | 1 July |
| Website | https://www.mod.go.jp/msdf/sf/index.html |
| Commanders | |
| Commander | Vice Admiral Yuasa Hideki |
The Self Defense Fleet (Japanese: 自衛艦隊, Hepburn: Jiei Kantai) is the main force of the Maritime Self-Defense Force, and was established at the same time as the establishment of the Self-Defense Forces (predecessor of the Ministry of Defense) on July 1, 1954. It operates ships and aircraft, and responds to maritime defense in the waters around Japan, various situations, and international missions.