Don McLeroy (born 1946) is a dentist and socially conservative Republican former member of the State Board of Education. He served as chairman from 2007 until 2009, when controversy surrounding his leadership led the Texas Senate to block his confirmation. He has served on the board since 1998. In the 2010 Republican primary, he lost his seat by a narrow margin to Thomas Ratliff, who ran on a platform of taking politics out of education.

McLeroy is a self-proclaimed creationist who takes a literal approach to the Bible.  He writes and talks frequently about his shift to Christianity and the need for abstinence only sex-education. He says it’s his belief that all children are created in the image of God that pushes him to pursue educational equity. In discussing his work teaching fourth grade Sunday school, he has called himself a "religious fanatic."

The Bryan dentist became a minor celebrity in education when, as chairman of the State Board of Education, he fought to ensure that students would learn “the strengths and weaknesses” of evolution. Despite losing his chairmanship in the ensuing battle, the conservatives say they emerged victorious with science teachers required to show faults in the fossil record.