Donovan Rieman (b. Nov. 29, 2003) is a high-motor, heavy-handed defensive end who is majoring in education. He redshirted in 2022 but figures to be part of the rotation in 2023.
Rieman prepped under head coach Rashaun Woods at Enid (Okla.) High School, where he was rated the 38th-best strongside defensive end in the Class of 2022 by 247Sports.
He totaled 88 tackles, 15 tackles for loss, and 10 sacks and was named the district player of the year as a senior for the Plainsmen, while he had 55 tackles and 3.5 sacks as a junior.