Junction, California may refer to:

• Junction, Contra Costa County, California, a former settlement on the East Bay of San Francisco, located adjacent to Antioch
• Junction House, Lassen County, California, formerly known as Junction, located at the junction of trails to Reno and Beckwourth Pass
• Junction, Mendocino County, California, also called Glenblair Junction, a former settlement located 3.25 miles southwest of Glenblair by rail
• Roseville, California, formerly known as Griders, Roseville Junction and Junction, a city in the metropolitan area of Sacramento in Placer County

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