Seoul High School (Hangul: 서울고등학교) is a public high school located in Seocho-dong, the greater Gangnam area Seocho-gu, Seoul, South Korea.

Seoul High School is a member school of Gangnam School District Eight (강남8학군).

The school was established at the site of Gyeonghuigung in 1946, moving to the current site (Seocho-dong) due to restoration of Gyeonghuigung.

Named Kyung Sung Middle School during Japanese occupation.