Antonín Jan Frič (in German: Anton Johann Fritsch, 30 July 1832 – 15 November 1913) was a Czech paleontologist, biologist and geologist, living during the Austria-Hungary era.

[1] In 1848 Antonin volunteered at the museum under Maxmillian Dormitzer, dealing with collections from Central America made by Augusto Corda.

For the Paris fair of 1867, he was involved in the production of large models of radiolarians based on the illustrations made by Ernst Haeckel.

[2] Frič also became known for finding fossils once attributed to dinosaurs - Albisaurus albinus and Ponerosteus exogyrarum and so far the only pterosaur known from the Czech Republic, Cretornis hlavaci.

[3] In 1884 he described and then repatriated the fossil shining leaf chafer scarab beetle Anomalites fugitivus which had been found in a slab of Süßwasserquarz millstone being carved in Prague.

[4] trpko jest v krajině bydleti a málo o ní věděti ["it is bitter to live in a country and know little about it"] Frič was a proponent of public education through museums and exhibitions.

Four months later a committee was begun consisting of him, merchant Jindřich Pižl, mayor Václav Vlach and Alois Hoch, then a school principal.