William Augusta Davis III (born July 6, 1972) is an American former professional football player who was a wide receiver for the Dallas Cowboys and Baltimore Ravens. He played college football for the Pittsburgh Panthers.

Davis attended Irvin High School, where he played as a quarterback, defensive back and punter. As a senior, he passed for 1,200 yards, receiving All-district, All-city and All-region honors. In track, he competed in the pole vault, 100 metres and 200 metres, receiving All-district and All-city honors.

He accepted a football scholarship from the University of Pittsburgh. As a freshman, he was converted into a wide receiver, posting 11 receptions for 100 yards. As a sophomore, he collected 34 receptions for 503 yards (14.8-yard average) and 3 touchdowns.

As a junior, he started 9 out of 11 games, registering 24 receptions for 346 yards (14.4-yard average) with one touchdown.

As a senior, he led the team with 51 receptions for 731 yards (14.3-yard average) and 9 touchdowns. He tied a school record with 4 touchdown receptions in a game, to help upset Rutgers University, while also making 10 receptions for 135 yards.

He finished with 120 receptions (third in school history) for 1,680 yards (fifth in school history) and 13 touchdowns.

Davis was signed as an undrafted free agent by the Dallas Cowboys after the 1995 NFL draft. He made the roster based on his special teams play. He recorded 16 special teams tackles (fifth on the team) and was a part of the Super Bowl XXX winning team.

In 1996, he missed 3 games with a broken fifth metatarsal in his right foot. He made 17 special teams tackles (tied for third on the team).