Jamison Mejia is an offensive lineman from Broken Arrow, Oklahoma, who joined Oklahoma State as a three-star recruit in 2023. Standing 6'3" and weighing 302 pounds, Mejia has spent three years in the program without appearing in game action. He earned practice player of the week honors for the Cowboys' offense against Texas in 2023, Utah in 2024, and both Arizona and Cincinnati in 2025. In high school, Mejia recorded 88 pancake blocks and zero sacks allowed as a senior, earning first-team all-state honors and 6A-I District 1 Offensive Lineman of the Year. Now a redshirt junior, Mejia remains on the roster as a returning player.

Oklahoma State2023 — present