Frederick Leypoldt
| Frederick Leypoldt | |
|---|---|
| Born | 17 November 1835 | 
| Died | 31 March 1884 (aged 48) | 
| Occupation | Bibliographer | 
Frederick Leypoldt (born Jakob Friedrich Ferdinand Leupold; 17 November 1835 – 31 March 1884) was a German-American bibliographer, the founder of Library Journal, Publishers Weekly, Index Medicus and other publications.