noun
general manager; director-general; head of a headquarters
A title for the head of a 本部 (headquarters, main office, or central division) in an organization, company, or government body. Often used in corporate, police, and military contexts.
彼は来月から営業本部長に就任する。
He will assume the post of General Manager of the Sales Division next month.
警察本部長が記者会見を開いた。
The Chief of the Prefectural Police Headquarters held a press conference.
本部 is the headquarters or central office itself; 本部長 is the person who leads it.
Compound of 本部 (headquarters) and 長 (chief, head).