| Frank Diven | |
| Position: | Pitcher/Outfielder |
| Bats: | Unknown |
| Throws: | Left |
| Birth Date: | 29 August 1859 |
| Birth Place: | Brooklyn, New York |
| Death Place: | Brooklyn, New York |
| Debutleague: | MLB |
| Debutdate: | May 9 |
| Debutyear: | 1883 |
| Debutteam: | Baltimore Orioles |
| Finalleague: | MLB |
| Finaldate: | September 29 |
| Finalyear: | 1886 |
| Finalteam: | New York Giants |
| Statleague: | MLB |
| Stat1label: | Win–loss record |
| Stat1value: | 1-1 |
| Stat2label: | Earned run average |
| Stat2value: | 7.36 |
| Stat3label: | Strikeouts |
| Stat3value: | 3 |
| Teams: | |
Frank Robert Diven (August 29, 1859 – May 30, 1914), was a professional baseball player who played pitcher in the Major Leagues for the 1883 Baltimore Orioles of the American Association and outfielder for the 1886 New York Giants of the National League.