Lamar High School

Lamar High School may refer to:
 * Lamar High School (Arkansas) in Lamar, Arkansas
 * Lamar High School (Colorado) in Lamar, Colorado
 * Lamar High School (Missouri) in Lamar, Missouri
 * Lamar High School (South Carolina) in Lamar, South Carolina
 * Lamar High School (Arlington, Texas) in Arlington, Texas
 * Lamar High School (Houston, Texas) in Houston, Texas

Lamar High School might also reference:
 * Lamar Consolidated High School in Rosenberg, Texas
 * Lamar School, Meridian, Mississippi