1 California
- 1 California (bus line)
- 1st Battalion of Native Cavalry, California Volunteers
- 1st California Infantry
- 1st California Veteran Infantry Battalion
- 1st Regiment California Volunteer Cavalry
- California (disambiguation)
- California Battalion
- California State Route 1
- California's 1st State Assembly district
- California's 1st State Senate district
- California's 1st congressional district
- California's 1st district (disambiguation)
- First California Mortgage
- One California
- One California Plaza
- OneCalifornia Bank
- Six Californias