Kōfu(甲府市,Kōfu-shi) is the capital city of Yamanashi Prefecture in Japan.
As of November 1, 2015, the city had an estimated population of 193,127 and a population density of 909 persons per km. The total area was 212.41 square kilometres (82.01sqmi). Kōfu's name means "capital of Kai Province". During the Sengoku period, it was famous as the stronghold of Takeda Shingen.