Shawnee Mission East High School is a public high school in Prairie Village, Kansas, United States, for grades 9 through 12. It is one of five high schools operated by the Shawnee Mission USD 512 school district. Shawnee Mission East High School was established in 1958 in order to serve the growing population of northeast Johnson County, Kansas. In January 1994, Shawnee Mission East began offering the International Baccalaureate program.