Brien McMahon High School is a secondary school located in Norwalk, Connecticut, USA. It is named after Brien McMahon, a former United States Senator from Norwalk. The school's mascot is a Senator with the school colors being red, white, and blue. The school's first senior class graduated in 1962. The current principal is Suzanne Brown Koroshetz. The school's crosstown rival is Norwalk High School; they compete in an annual Thanksgiving Day football game.