John Joseph O'Connell (May 16, 1872 – May 14, 1908) was a baseball player for Major League Baseball. His career was short, and he only played for two seasons. During his two-season, he accumulated relatively poor statistics in very little playing time. He played in only 16 games and had nine hits in 51 at bats for a batting average of .176. At the age of 19, he made his professional debut on August 22, 1891 for the Baltimore Orioles near the end of their 1891 season in the last year of the American Association. For the Orioles, he played second base, right field, and shortstop for a total of eight games. The following year, O'Connell was not a member of the Orioles when they transferred to the National League in 1892.