Jack O'Brien (catcher)

Jack O'Brien (born circa 1860s, death date unknown) was an American professional baseball player who played catcher in Major League Baseball for one season in 1884. He appeared in 14 games for the Washington Nationals of the American Association. His batting average was .136 and he had no home runs. Further details about his life, including his birth and death dates and locations, are currently unknown due to limited historical records. He is distinct from other baseball players with the same or similar names.