Marshall Senior High School is a public high school located in Marshall, Minnesota, United States. The school educates students in grades 9 to 12. This high school received a GreatSchools rating of 7 out of 10 based on the students' test scores. In 2011, the 10th grade reading scores and the 11th grade science scores were both above the state average. However, the 11th grade math scores were 3% below the Minnesota state average.

This is the administration as of March 9, 2015.

• Principal: Brian Jones
• Superintendent: Jeremy Williams

In order to earn a diploma, students must pass Writing, Reading, and Math GRAD tests. They must also take the Reading and Math Minnesota Comprehensive Assessments.

Marshall Senior High School has a variety of activities that teach the athletes skills such as: teamwork, self-discipline, time-management, and dedication. The school offers fine art activities as well as athletic activities.

The fine art programs are:

The athletic activities are:

The activities have 75% of the student body participating in at least one activity a year. 63% of students who participate are involved in two or more activities. The school has nine Minnesota High School League (MSHSL) Team State Champions and 67 teams compete in MSHSL state tournaments as well as many individuals competing in state tournaments.

• Blaise Andries, Minnesota football guard and offensive tackle
• Yahya Black, college football defensive tackle for the Iowa Hawkeyes
• Gordon Forbes, Minnesota lawyer and politician
• Walt Jocketty, Major League Baseball General Manager
• Trey Lance, NFL quarterback for the Dallas Cowboys
• Brandon Swanson, teenager who disappeared on May 14, 2008, and still missing
• Sean Tillman, aka Har Mar Superstar, musician