Lanier High School is the name of several high schools in the United States. Some include:

• Juan Navarro High School, formerly Lanier High School, in Austin, Texas

• Sidney Lanier High School in Montgomery, Alabama
• Lanier High School (San Antonio, Texas)
• Lanier High School (Jackson, Mississippi)
• Lanier High School (Sugar Hill, Georgia)
• Lanier High School in Macon, Georgia, now part of Central High School (Macon, Georgia)