civil governor
Historical title for a civilian administrator, especially in occupied territories or colonial contexts. Not a modern Japanese government position.
After the war, a civil governor was appointed in Okinawa.
知事 is the modern term for a prefectural governor, while 民政長官 is a historical title for a civil administrator, often in occupied or colonial areas.
Compound of 民政 (civil administration) and 長官 (chief official). The term is primarily historical and not used in contemporary Japanese governance.