New California

New California may refer to:


 * Alta California, a 19th-century Spanish and later Mexican territory officially known as Nueva California between 1804 and 1824
 * A 21st-century proposal for partition and secession in California
 * New California, Ohio, a census-designated place
 * Garden City, Texas, formerly known as New California
 * New California Republic, a fictional federal republic and faction featured in the Fallout series
 * Fallout: New California, a Fallout fan game