Greg Davis (born April 25, 1951 in Groves, Texas) is a college football coach. He is currently the offensive coordinator and quarterbacks coach for the University of Texas Longhorns. In 2006, he was awarded the prestigious Broyles Award for the nation's top assistant coach for the 2005 season which included a national championship victory for the Horns. Davis is sometimes criticized by UT fans for being overly conservative and for not achieving the full potential of his talented players.

Davis attended Port Neches-Groves High School and then played quarterback at McNeese State University, where he first met R. C. Slocum. He played in the Grantland Rice Bowl in 1971, losing to Tennessee State 26–23. He graduated from McNeese State in 1973.

Davis started his coaching career as a quarterbacks/receivers coach at Barbe High School in Lake Charles, Louisiana. He served two seasons there, and then went on to become the quarterbacks coach for two seasons at Port Neches-Groves High School, which was close to his hometown. He began his college coaching career as the quarterbacks coach under Tom Wilson and Jackie Sherrill at Texas A&M University. He was a part-time assistant at A&M in 1978, and then was named a full-time coach in 1979. He worked alongside Slocum, who then served as the defensive coordinator.