| Littlerock High School | |
| Established: | 1989 |
| Type: | High school |
| Principal: | Jose Barajas |
| Head Name: | Second Master |
| Head Name2: | Assistant Headmaster |
| Ratio: | 25.24 |
| Teaching Staff: | 62.01 (FTE) |
| Enrollment: | 1,565 (2022–23)[1] |
| Grades: | 9-12 |
| Streetaddress: | 10833 E. Avenue R |
| City: | Littlerock |
| State: | California 93543 |
| District: | Antelope Valley Union High School District |
| Mascot: | Lobo |
| Free Label: | Emblem |
| Website: | Littlerock High School website |
Littlerock High School is a public, co-educational high school built in 1989. It is located in Littlerock, California, United States. The school serves Littlerock and the surrounding communities of Lake Los Angeles, Pearblossom, and Llano. It is part of the Antelope Valley Union High School District (AVHSD).
Littlerock High School is designated as a Title I school.