Robert Joseph Carpenter III is an American former professional football player who was a linebacker for seven seasons in the National Football League (NFL), primarily with the Dallas Cowboys. He played college football for the Ohio State Buckeyes, and was selected by the Cowboys in the first round of the 2006 NFL Draft. He also played in the NFL for the Miami Dolphins, the Detroit Lions and the New England Patriots.

The 2006 Dallas Cowboys season was the 47th season for the team in the National Football League (NFL). The season began with the team trying to improve on their 9–7 record in 2005. The base offense was changed to a 2-tight end formation. Several high-profile free agents were signed including controversial wide receiver Terrell Owens and kicker Mike Vanderjagt. Veteran defensive end Greg Ellis was also converted into a linebacker.