| Walt Preston | |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | 6 April 1868 |
| Birth Place: | Richmond, Virginia |
| Death Place: | New Orleans, Louisiana |
| Debutleague: | MLB |
| Debutdate: | April 18 |
| Debutyear: | 1895 |
| Debutteam: | Louisville Colonels |
| Finalleague: | MLB |
| Finaldate: | July 8 |
| Finalyear: | 1895 |
| Finalteam: | Louisville Colonels |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .279 |
| Stat2label: | Stolen bases |
| Stat2value: | 11 |
| Stat3label: | Runs batted in |
| Stat3value: | 24 |
| Teams: |
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Walter B. Preston (April 6, 1868 – December 23, 1937) was a professional baseball player. He played outfield and third base in the National League for the Louisville Colonels during the 1895 season. He played in the minors through 1907.