Fort Mohave is an unincorporated community and census-designated place in Mohave County, Arizona, United States. It is named for a nearby fort that was used during the Mohave War. As of the 2020 census, the population of Fort Mohave was 16,190, up from 14,364 in 2010 and 8,919 in 2000. It is a suburb of Bullhead City. Its recent growth has made it the most populous unincorporated community in Mohave County.

Mohave County is in the northwestern corner of the U.S. state of Arizona. As of the 2020 census, its population was 213,267. The county seat is Kingman, and the largest city is Lake Havasu City. It is the fifth largest county in the United States.