| Jack Carney | |
| Position: | First baseman |
| Bats: | Right |
| Throws: | Right |
| Birth Date: | November 10, 1866 |
| Birth Place: | Salem, Massachusetts, U.S. |
| Death Place: | Litchfield, New Hampshire, U.S. |
| Debutleague: | MLB |
| Debutdate: | April 24 |
| Debutteam: | Washington Nationals |
| Finalleague: | MLB |
| Finaldate: | October 4 |
| Finalteam: | Milwaukee Brewers |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .273 |
| Stat2label: | Home runs |
| Stat2value: | 7 |
| Stat3label: | Runs batted in |
| Stat3value: | 129 |
| Teams: |
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John Joseph Carney (November 10, 1866 – October 19, 1925), also known as "Handsome Jack", was an American professional baseball player in the late 19th century. He was born in Salem, Massachusetts, United States in 1866, and made his debut with the Washington Nationals on April 24, 1889. His last game, with the Milwaukee Brewers, was on October 4, 1891, and he died in 1925 in Litchfield, New Hampshire. In his three-year career, he also played with the Buffalo Bisons, the Cincinnati Kelly's Killers, and the Cleveland Infants, and his positions were first base and outfield. Carney's best performance was with the Infants in 1890, with whom he had a batting average of .348.