Lamar Consolidated High School is a grades 9–12 school located in Rosenberg, Texas, United States.

The school, which serves the City of Richmond, parts of Rosenberg, and unincorporated areas of Fort Bend County, is a part of the Lamar Consolidated Independent School District (LCISD).

In 2005–06, this school was rated "Acceptable" by the Texas Education Agency.

Its attendance boundary includes sections of Rosenberg and areas within the city limits of Richmond.

[3] Previously the boundary included Greatwood,[4] and Kendleton.