| Box Width: | 280px |
| Fremont High School | |
| Principal: | Alicia Mitchell [1] |
| Grades: | 10–12 |
| Enrollment: | 2,160 (2022–23)[2] |
| Ratio: | 22.62 |
| Teaching Staff: | 95.48 (FTE) |
| Class: | 6A |
| Mascot: | Silverwolves |
| Colors: | Blue and silver [3] |
| Address: | 1900 N 4700 W |
| City: | Plain City, Utah 84404 |
| Founded: | 1994 |
| Website: | https://fremont.wsd.net |
Fremont High School is a public high school located on 1900 North 4700 West in Plain City, Utah that serves the residents of rural Weber County. This school opened in the fall of 1994. The current principal is Alicia Mitchell. The school was named after the explorer John C. Frémont.
Fremont is a member of the Utah High School Activities Association (UHSAA) competing in Class 6A - the largest class in Utah. With the 2025-26 realignment changes approaching, it is anticipated Fremont will jump to the 5A Classification with the reduction of its enrollment numbers (Due to the opening of a new high school within what was formerly Fremont's school boundaries. See "Recent Changes" section below for more details.)
Fremont Choirs are among the best in the state and have made 40 State Festival Appearances. Under the direction of Nathan Geoffrey Anderson six high-ranking choirs are maintained:
Their most notable rivals are fellow Weber County schools Weber High School and Roy High School due to their close proximity and the vast majority of Fremont students coming from Weber when Fremont opened in 1994. With subsequent boundary changes, Fremont has many students that previously attended either Roy and Weber High Schools adding the shared sense of rivalry.
In the fall of 2024, West Field High School opened in West Haven, Utah. This resulted in approximately 600-700 Fremont students switching to the new school significantly reducing Fremont's enrollment numbers.