| Walter Hackett | |
| Position: | Shortstop |
| Bats: | Unknown |
| Throws: | Unknown |
| Birth Date: | August 15, 1857 |
| Birth Place: | Cambridge, Massachusetts |
| Death Place: | Cambridge, Massachusetts |
| Debutleague: | MLB |
| Debutdate: | April 17 |
| Debutyear: | 1884 |
| Debutteam: | Philadelphia Keystones |
| Finalleague: | MLB |
| Finaldate: | October 8 |
| Finalyear: | 1885 |
| Finalteam: | Boston Beaneaters |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .230 |
| Stat2label: | Home runs |
| Stat2value: | 1 |
| Stat3label: | Runs batted in |
| Stat3value: | 9 |
| Teams: |
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Walter Henry Hackett (August 15, 1857 – October 2, 1920) was a Major League Baseball shortstop. He played for the 1884 Boston Reds in the Union Association and the 1885 Boston Beaneaters in the National League. He later played in the minor leagues through 1889. His brother, Mert Hackett and cousins Dad Clarkson, John Clarkson and Walter Clarkson all also played professional baseball.
Family History, great-grandson Walter Henry Hackett, III, Attorney at Law, CA SBN230607