Deon Williams is a defensive lineman from Las Vegas who attends Illinois. Williams played at Liberty High School in Henderson, Nevada, where he competed on both lines and helped lead the Patriots to the state semifinals in 2024. He then spent his freshman year at City College of San Francisco, appearing in 10 games with 25.0 total tackles (17 solo) and 3.0 tackles for loss while the Rams won a Bay 6 League championship. Williams chose Illinois after receiving Power 4 offers from Colorado, Kansas, Kansas State, and Louisville, among others.