| Walter Fisher | |
| Position: | Outfielder |
| Birth Date: | 17 April 1867 |
| Birth Place: | Baltimore, Maryland |
| Bats: | Unknown |
| Throws: | Unknown |
| Debutleague: | MLB |
| Debutdate: | June 15 |
| Debutyear: | 1889 |
| Debutteam: | Louisville Colonels |
| Finalleague: | MLB |
| Finaldate: | June 15 |
| Finalyear: | 1889 |
| Finalteam: | Louisville Colonels |
| Statleague: | MLB |
| Stat1label: | Batting average |
| Stat1value: | .500 |
| Stat2label: | At bats |
| Stat2value: | 2 |
| Stat3label: | Hits |
| Stat3value: | 1 |
| Teams: | |
Walter William Fisher (April 12, 1867 – May 26, 1921) was an American professional baseball player. He played in one game on June 15, 1889, for the Louisville Colonels of the American Association. A local semi-pro player, he served as a replacement player when several members of the Colonels refused to play in protest of owner Mordecai Davidson's failure to pay them.
Fisher was misidentified by baseball historians as "Charles Fisher" for years until 2023.[1]