In a video posted to YouTube, Williams said after consulting with his family and praying, he had decided to return to the Razorbacks in 2015.
In 2014, Williams rushed for 1,085 yards and 11 touchdowns, helping Arkansas finish 6-6. Williams was fourth in the SEC in rushing.
"My faith, family and education are very important to me and all three played a major role in my decision," Williams said, according to the Associated Press. "I have many goals that I want to pursue, on and off the field. Graduating from the University of Arkansas is very important to me, and I look forward to running through the `A' again in 2015."
Razorbacks sophomore Alex Collins also rushed for more than 1,000 yards this season, totaling 1,024.
Arkansas will play Texas in the Texas Bowl on Dec. 29.
- Stanley Kay