Motosu is a city located in Gifu, Japan. As of 1 November 2018, the city had an estimated population of 34,453 in 12, 464 households, and a population density of 390 persons per km2. The total area of the city was 374.65 square kilometres (144.65 sq mi).

Gifu Prefecture is a prefecture of Japan located in the Chūbu region of Honshu. Gifu Prefecture has a population of 1,991,390 and has a geographic area of 10,621 square kilometres (4,101 sq mi). Gifu Prefecture borders Toyama Prefecture to the north; Ishikawa Prefecture to the northwest, Fukui Prefecture and Shiga Prefecture to the west, Mie Prefecture to the southwest, Aichi Prefecture to the south, and Nagano Prefecture to the east.