| Pat Luby | |
| Position: | Pitcher |
| Bats: | Left |
| Throws: | Right |
| Birth Date: | January 1869 |
| Birth Place: | Charleston, South Carolina, U.S. |
| Death Place: | Charleston, South Carolina, U.S. |
| Debutleague: | MLB |
| Debutdate: | June 16 |
| Debutyear: | 1890 |
| Debutteam: | Chicago Colts |
| Finalleague: | MLB |
| Finaldate: | June 11 |
| Finalyear: | 1895 |
| Finalteam: | Louisville Colonels |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 40–41 |
| Stat3label: | Strikeouts |
| Stat3value: | 215 |
| Stat2label: | Earned run average |
| Stat2value: | 3.88 |
| Teams: |
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John Perkins "Pat" Luby (January, 1869 – April 24, 1899), was a professional baseball pitcher in the Major Leagues from 1890 to 1895. Luby played for the Louisville Colonels and Chicago Colts.