Middlebury Union High School (MUHS) is a public high school in the Addison Central Unified School District in Middlebury, Vermont, United States. Founded in 1911, the school is located at 73 Charles Avenue, it had 537 students in grades 9–12 for the 2019–2020 school year. The school is ranked 6th out of 47 Vermont high schools for the 2023–2024 school year. MUHS is an International Baccalaureate (IB) school offering DP courses and a 10th-grade Personal Project. Clubs include Model UN, BIPOC, student council and the prodigious Neuroscience club.