Southeast High School, South East High School, or Southeastern High School may refer to:
California
- South East High School (South Gate, California)
Florida
- Southeast High School (Florida) in Bradenton
Illinois
- Southeastern High School (Illinois)
- Springfield Southeast High School
Kansas
- South East High School (Kansas) in Cherokee, Kansas
- Southeast of Saline Secondary School in Gypsum
- Wichita High School Southeast
Michigan
- Southeastern High School (Detroit, Michigan)
Missouri
- Southeast High School (Missouri) in Kansas City, Missouri
Nebraska
- Lincoln Southeast High School
Ohio
- Southeast High School (Ohio) in Palmyra Township
- Southeastern High School (Chillicothe, Ohio)
- Southeastern Local High School (South Charleston, Ohio)
Oklahoma
- Southeast High School (Oklahoma City, Oklahoma)
. Source: