| Gus Williams | |
| Position: | Pitcher |
| Birth Date: | 1870 |
| Birth Place: | New York City |
| Death Date: | October 14, 1890 |
| Death Place: | New York City |
| Bats: | Unknown |
| Throws: | Unknown |
| Debutleague: | MLB |
| Debutdate: | April 18 |
| Debutyear: | 1890 |
| Debutteam: | Brooklyn Gladiators |
| Finalleague: | MLB |
| Finaldate: | April 22 |
| Finalyear: | 1890 |
| Finalteam: | Brooklyn Gladiators |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat2label: | Earned run average |
| Stat3label: | Strikeouts |
| Stat1value: | 0-1 |
| Stat2value: | 7.50 |
| Stat3value: | 2 |
| Teams: | |
Augustine H. Williams (1870 – October 14, 1890) was an American baseball player who was a pitcher for the 1890 Brooklyn Gladiators in the American Association. He died the same year he made his major league appearances.