Ronald Fields (born September 13, 1981) is a former American football nose tackle.

He was also a member of the Denver Broncos, Miami Dolphins, and Carolina Panthers.

Ronald Fields attended Mississippi State University, where he played nose guard, won first-team All-SEC accolades, and finished his career with one sack, 172 tackles (16.5 for losses), six quarterback hurries, one forced fumble, and two fumble recoveries.

In 2006, he played in 13 games and finished the campaign with a career high 28 tackles.

Fields signed with the Miami Dolphins on July 31, 2011, but was released on September 3.