Longmont High School
Longmont High School is the original high school of the city of Longmont, Colorado, United States, and opened its doors to students in 1901. The school is located in central Longmont and serves as a high school for the St. Vrain Valley School District.
Athletics
The Longmont High School football team won the national championship in 1908. It went on to win its next Colorado state football championship in 1940, followed by back-to-back state titles in 1954 and 1955. The school is perhaps best known, however, for its record streak, starting in 1988 and ending in 1992, in which the Trojans went 45–0, winning three consecutive championship crowns. This remains the longest winning streak in large-school Colorado football history. In 2018, the Girls swim team won the 3A championship.Robotics
The VEX Robotics team "Pronounce This" won its first state championship in the 2021–2022 season and went on to win back-to-back state championships in 2023 and 2024. Team 2654P earned the Excellence Award at the 2024 VEX World Championship. The team was dissolved in 2025.| Year | Team | Achievement |
| 2021-2022 - Tipping Point | 2654P | State Champions |
| 2022-2023 - Spin Up | 2654P | State Champions |
| 2023-2024 - Over Under | 2654P | State Champions, World Champions |
Music
The Longmont Combined Schools Drumline has competed in Percussion Scholastic World in 2001; Percussion Scholastic Open, winning two state championships from 2002 to 2006; Percussion Scholastic National A PSNA, from 2007 to 2009, winning state in 2009; and in Percussion Scholastic A from 2010 to present. They compete almost every year in the WGI competitions. They no longer compete as a scholastic group for WGI.They are an eight-time WGI World Championship finalist, placing as follows:
| Year | Program title | Score | Competitive result |
| 2001 | The Toys | 84.20 | 11th Percussion Scholastic World |
| 2002 | West Side Story | 84.30 | 9th Percussion Scholastic Open |
| 2003 | Superstitions | 87.35 | 7th PSO |
| 2005 | The Iron Road | 91.90 | 4th PSO |
| 2006 | The Four Corners | 84.05 | 12th PSO |
| 2008 | Dinner at Pertrucci's | 86.05 | 9th Percussion Scholastic A |
| 2023 | Hide and Speak | 92.863 | 6th PSA |
| 2024 | Playing with Colors | 83.375 | 15th PSA |
Notable alumni
- Greg Biekert – former linebacker for the Oakland Raiders and Minnesota Vikings
- Vance D. Brand – former NASA astronaut, test pilot, mission commander and engineer
- Walt Clay – former halfback and fullback for the Chicago Rockets and Los Angeles Dons
- Eric Coyle – former center for the Washington Redskins
- Eddie Eagan - former U.S. Olympian and chairman of the New York State Athletic Commission
- David Pauley – pitcher for the Toronto Blue Jays
- Vince Rafferty – former center and guard for the Green Bay Packers
- Ed Werder – ESPN NFL analyst