| Colusa High School | |
| Type: | Public |
| Principal: | David Johnstone |
| Head Name: | Second Master |
| Head Name2: | Assistant Headmaster |
| Teaching Staff: | 21.56 (FTE) |
| Ratio: | 21.80 |
| Enrollment: | 470 (2022–23)[1] |
| Grades: | 9-12 |
| Streetaddress: | 901 Colus Avenue |
| State: | California 95932 |
| District: | Colusa Unified |
| Colors: | Cardinal and white |
| Athletics: | Football, girls' volleyball, girls' tennis, boys' tennis football cheerleading, cross country, boys' basketball, girls' basketball, boys' soccer, girls' soccer, basketball cheerleading, wrestling, baseball, softball, and track |
| Mascot: | Robbie The RedHawk |
| Yearbook: | Colus (1916-2010), Redhawk Tales (2010-present) |
| Website: | Colusa High School |
Colusa High School is a public high school located in Colusa, Colusa County, California, United States.
In August 2010, it was featured on the MTV series If You Really Knew Me.
Colusa Grammar School and Colusa High School and Grounds (the 1926 building, which served as a junior high school until 1976) are both listed on the National Register of Historic Places.