Sentinel High School, located in Missoula, Montana, is a four-year public high school. Sentinel High School is part of the Smart Schools 2020 initiative to create school settings that provide security, technology, and dynamic learning environments that help students achieve success in school and in life.

Sentinel High School offers a comprehensive curriculum to students with multiple enrichment opportunities for students seeking accelerated and enhanced instruction. Graduation requirements are based on a classic model of proficiency in subject areas in combination with individually selected electives. A four-year graduation plan must consist of 24 credits.