| Buck Hopkins | |
| Position: | Center fielder |
| Bats: | Left |
| Throws: | Left |
| Birth Date: | January 3, 1883 |
| Birth Place: | Grafton, Virginia |
| Death Place: | Phoebus, Virginia |
| Debutleague: | MLB |
| Debutdate: | July 22 |
| Debutteam: | St. Louis Cardinals |
| Finalleague: | MLB |
| Finaldate: | September 24 |
| Finalteam: | St. Louis Cardinals |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .136 |
| Stat2label: | Home runs |
| Stat2value: | 0 |
| Stat3label: | Runs batted in |
| Stat3value: | 3 |
| Teams: |
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John Winton "Buck" Hopkins (January 3, 1883 – October 2, 1929) was a Major League Baseball outfielder. Nicknamed "Sis", he played fifteen games for the St. Louis Cardinals in . Hopkins' minor league baseball career spanned fifteen seasons, between and .