Robert A. Roesner
- High School Loyola Blakefield High School
- Born 1926 in Baltimore, MD USA
- Died February 6, 2012 in Naples, FL USA
Bob Roesner served as a replacement umpire in Major League Baseball in 1978 and 1979. He umpired one game in 1978, on August 25, and 16 games in 1979, appearing in his final game on May 12. Reports say healso scouted for the Milwaukee Brewers in the early 1970s, though he is not listed in the Hall of Fame's comprehensive Diamond Mines scout database.
His umpiring crew was cast for the movie Major League II in 1994.