Chuichu (O'odham: Ce:co name translates as "Many Caves") is a census-designated place (CDP) in Pinal County, Arizona, United States.

[3] It is the northernmost traditional village on the Tohono O'odham Nation reservation.

[4] According to the United States Census Bureau, the CDP has a total area of 2.5 square miles (6.5 km2), all land.

The racial makeup of the CDP was 1% White, 98% Native American, and 1% from two or more races.

11% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older.