Valentine is an unincorporated community and census-designated place (CDP) in Mohave County, Arizona, United States.

The majority of Valentine is located in a geographically isolated exclave of the Hualapai Reservation and the rest of the community is located in unincorporated Mohave County.

[4] The Valentine Elementary School District serves the communities of Valentine, Truxton, Crozier and a portion of Hackberry.

The Valentine Campus was closed in 1969, and classes were moved to Truxton.

[7] The Bureau of Indian Affairs operated the Truxton Canyon Training School in Valentine from 1903 to 1937.