Zac Williams is in his third season on the Illinois staff in 2025. Williams, who was hired in July 2023, is an assistant athletic trainer working with the Illinois football team.

Williams came to Champaign from Lexington, Kentucky, where he spent two years completing a fellowship with the Wildcats football team. Prior to Kentucky, Williams worked as a graduate assistant for Penn State Wilkes Barre.

As an athletic training student, Williams worked with the men's basketball, baseball, and track & field teams. Williams also served as a student intern for the Cincinnati Bengals during the 2017-2018 season.

Williams completed his undergraduate degree in athletic training from Cedarville University where he also minored in bible and psychology. He received his master’s degree in athletic training from East Stroudsburg University.

Williams is originally from Pennsylvania and now resides in Champaign, Illinois.