| Jan Svatopluk Presl | |
| Birth Date: | 1791 9, df=yes |
| Birth Place: | Prague, Bohemia, Habsburg monarchy |
| Death Place: | Prague, Bohemia, Austrian Empire |
| Fields: | Botany, Chemistry |
| Alma Mater: | Charles University |
| Author Abbrev Bot: | J.Presl |
| Signature: | Presl podpis.png |
Jan Svatopluk Presl (4 September 1791 – 6 April 1849) was a Czech natural scientist.
He was the brother of botanist Carl Borivoj Presl (1794–1852). The Czech Botanical Society commemorated the two brothers by naming its principal publication Preslia (founded in 1914). He is the author of Czech scientific terminology of various branches of science, including the Czech chemical nomenclature. He was the co-author of an important Czech taxonomic work, O Přirozenosti Rostlin. The brothers co-edited the exsiccata series Vegetabilia cryptogamica Boëmiae collecta a Joanne et Carolo Presl.[1]