Olathe South High School is a public high school located in Olathe, Kansas, United States, serving students in grades 9-12. The school is one of five high schools in the Olathe USD 233 school district. Olathe South High School was recognized as a National School of Excellence for the 1990–91 school year by the U.S. Department of Education, becoming the first high school in Olathe to do so. Olathe South's official colors are blue and gold, and the official mascot is the Falcon. The average annual enrollment at Olathe South is approximately 2,100 students.