Colorado Boulevard
| Map of Los Angeles County in southern California with Colorado Boulevard highlighted in red | |
| Maintained by | 
 | 
|---|---|
| Location | Los Angeles County, California, United States | 
| West end | I-5 in Los Angeles | 
| Major junctions | |
| East end | Shamrock Ave in Monrovia | 
Colorado Boulevard (or Colorado Street in Glendale and parts of Arcadia) is a major east–west street in Los Angeles County, California, United States. It runs from Griffith Park in Los Angeles east through Glendale, the Eagle Rock section of Los Angeles, Pasadena, and Arcadia, ending in Monrovia. The full route was once various state highways but is now locally maintained in favor of the parallel Ventura Freeway (SR 134) and Foothill Freeway (I-210).