Cienega Springs is a census-designated place in La Paz County, Arizona, United States.

The community is in northwestern La Paz County, along the Colorado River.

It is bordered to the southwest by the community of Bluewater and to the northwest, across the river, by the state of California.

Arizona State Route 95 mostly forms the southeast edge of the Cienega Springs CDP.

The highway leads southwest 4.5 miles (7.2 km) to Parker, the La Paz county seat, and northeast 11 miles (18 km) to Parker Dam on the Colorado River, forming Lake Havasu.