The Muriel Sutherland Snowden International School at Copley (formerly Copley High School) is a public high school located in Boston, Massachusetts, United States. Its international-themed curriculum was introduced by the school's namesake, Muriel S. Snowden, in 1983. The school was renamed after Snowden in 1988.

As a part of the international-themed curriculum, students are required to take four years of a foreign language: (Spanish, French, Chinese, or Japanese). In addition to the language component, Snowden International School has the goal of having twenty five percent of each student class take part in exchange/immersion programs to foreign countries including China, Japan, Canada, England and Costa Rica.