This is a list of notable coastal islands of the Californias - coastal islands west of California and the Baja California Peninsula in the Pacific Ocean. California is in the United States; and the Baja California Peninsula includes the states of Baja California Sur and Baja California in Mexico. Although the waters and islands are in two countries, many of the ecoregion, habitat, conservation, and ecological issues are shared.
Farallon Islands

- Farallon Islands
Channel Islands of California

The Channel Islands of California, United States:
- Anacapa Island
- San Miguel Island
- Santa Cruz Island
- Santa Rosa Island
- San Clemente Island
- San Nicolas Island
- Santa Barbara Island
- Santa Catalina Island
Coastal islands of Baja California Peninsula

The Coastal islands of the Baja California Peninsula, Mexico:
- Alijos Rocks
- Angel de la Guarda Island
- Cedros Island
- Coronado Islands
- Espiritu Santo Island
- Guadalupe Island
- Natividad Island
- San Benito Islands
- San Esteban Island
- San José Island
- San Lorenzo Island
- Santa Margarita Island
- San Martin Island
- Tiburón Island
- Todos Santos Islands
- Category:Islands of Baja California and Category:Islands of Baja California Sur
Islands of the Gulf of California

Islands of the Gulf of California:
See also

- List of islands of California
- List of islands of Mexico

