1st Mobile Fleet (Imperial Japanese Navy)
The 1st Mobile Fleet was a fleet of the Imperial Japanese Navy established during World War II.
Structure
Commanders
Commander in chief| Rank | Name | Date | Additional post | |
| 1 | Vice-Admiral | Jisaburō Ozawa | 1 March 1944 | Commander of the 3rd Fleet and the 1st Carrier Division |
| 1 | Vice-Admiral | Jisaburō Ozawa | 1 October 1944 | Commander of the 3rd Fleet |
Chief of staff
| Rank | Name | Date | Additional post | |
| 1 | Rear-Admiral | Keizō Komura | 1 March 1944 | Chief of staff of the 3rd Fleet |
| 2 | Rear-Admiral | Sueo Ōbayashi | 1 October 1944 | Chief of staff of the 3rd Fleet |