governor of Hokkaido
Refers specifically to the governor of Hokkaido Prefecture, which is designated as a 道 (dō) rather than a 県 (ken) or 府 (fu).
The governor of Hokkaido will be elected in next month's election.
Compound of 道 (dō, 'Hokkaido') and 知事 (chiji, 'governor'). The term is straightforward and modern.