Lamar High School (Arlington Texas)
 Mirabeau B. Lamar High School is a secondary school in Arlington Texas. It is named for Mirabeau B. Lamar the second president of the Republic of Texas and located at 1400 West Lamar Boulevard.The school which handles grades 9 through 12 is a part of the Arlington Independent School District. The current principal is Larry Harmon who replaced Jeff Provence in 2012 after Provence left at the end of the 2011-12 school year.