| Fred Mollenkamp | |
| Position: | First baseman |
| Bats: | Unknown |
| Throws: | Unknown |
| Birth Date: | March 15, 1890 |
| Birth Place: | Cincinnati, Ohio |
| Death Place: | Cincinnati, Ohio |
| Debutleague: | MLB |
| Debutdate: | August 29 |
| Debutteam: | Philadelphia Phillies |
| Finalleague: | MLB |
| Finaldate: | August 30 |
| Finalteam: | Philadelphia Phillies |
| Statleague: | MLB |
| Stat1label: | Games played |
| Stat1value: | 3 |
| Stat2label: | At bats |
| Stat2value: | 8 |
| Stat3label: | Hits |
| Stat3value: | 1 |
| Teams: | |
Frederick Henry Mollenkamp (March 15, 1890 - November 1, 1948) was a Major League Baseball first baseman who played for the Philadelphia Phillies in .