Plano East Senior High School (commonly East, Plano East, or PESH) is a secondary school in Plano, Texas (USA) serving high school juniors and seniors, as well as freshmen and sophomores as a part of the IB World School (beginning with the 2013-2014 school year). It is part of the Plano Independent School District, and enrolls students based on the locations of students' homes. Students at Plano East attended one of two high schools: McMillen or Williams.