Robert Brewster (born July 30, 1986) is an American footballoffensive tackle who is currently a free agent. He was drafted by the Dallas Cowboys in the third round of the 2009 NFL Draft. He played for Ball State as they achieved a national ranking in 2008 for the first time in school history. While at Ball State, he earned first team nominations to the All-Mid-American Conference in both 2007 and 2008. Brewster attended Wyoming High School, and lettered three times in football. Brewster was acquired by the Command on December 30, 2011 as a rookie free agent.
Brewster was drafted in the third round of the 2009 NFL Draft, but his time with the team would be short. In 2010 during a 1-7 start, on October 15, the Cowboys decided to release him due to a lack of production. After his release he was signed to the team's practice squad, but couldn't make the roster the next year.