| Rainbow | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | California#USA |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in California |
| Pushpin Image: | California Locator Map with US.PNG |
| Unit Pref: | US |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Placer County |
| Coordinates: | 39.3103°N -120.5086°W |
| Elevation M: | 1762 |
| Elevation Ft: | 5781 |
Rainbow is an unincorporated community in Placer County, California. Rainbow is located 1.5miles east of Cisco Grove. It lies at an elevation of 5781 feet (1762 m).
Rainbow is named for the Rainbow Lodge, a tavern built on US 40 at the site in 1927. The lodge soon became a service stop on the highway and a recreational destination, with a small rope-pulled ski lift.[1]