Skull Valley (Yavapai: Pa:qwawa Kyo) is a small, populated place, and rural, ranch community in Yavapai County, Arizona, United States. It is located twelve miles west of Prescott. There is a general store, a gas station, an elementary school, a fire station, a church, and a post office. As of the 2003 census, the population in the Skull Valley Elementary School District was 525 people.
Skull Valley was home to George Phippen (1915–1966), a well known western artist, co-founder and first president of the Cowboy Artists of America.
Skull Valley was so named when settlers found human remains resulting from a previous battle between Native Americans.
The area's history is preserved by the Skull Valley Historical Society, which operates a free museum. Robert L. Pearson, a native of the area and retired wildlife manager, has created an online photo gallery of the area's insects.