Robert Reach (August 28, 1843 – May 19, 1922) was an American professional baseball player born in Brooklyn, New York. He played shortstop in three games during a two season span in the National Association, from 1872 to 1873. Reach had previously played for the 1869 Olympics, and the 1868 Philadelphia Keystones teams when they were in the amateur National Association. He played two games for the 1872 Washington Olympics, collecting two hits in eight at bats, and scored one run. Then, in 1873, he played one game for the Washington Blue Legs, collecting one hit in five at bats, while scoring one run. In total, he batted 13 times, had three hits, scored two runs, and had a .231 batting average.