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

Katherine is located on the western edge of Mohave County at 35°13′14″N 114°33′42″W / 35.22056°N 114.56167°W / 35.22056; -114.56167 (35.220608, −114.561528).

It is bordered to the west by Lake Mohave on the Colorado River, which serves as the Nevada state line.

The racial makeup of the CDP was 98.1% White, 0.95% American Indian, and 0.95% Asian.

The CDP contained 158 housing units, of which 57 were occupied and 101 were vacant.