Paul Gustave Fischer (22 July 1860, Copenhagen - 1 May 1934 Gentofte) was a Danish painter.

Paul Fischer belongs to the fourth generation of Fischers to live in Denmark. This Jewish family originally came from Poland. The family was upper middle class; Paul's father had started as a painter, but later succeeded in the business of manufacturing paints and lacquers. Paul's formal art education lasted only a short time in his mid teens when he spent two years at the Royal Danish Academy of Art in Copenhagen.

Fischer began to paint when he was still young, guided by his father. It was thanks to a painting he had published in Ude og Hjemme that his reputation began to evolve as he came in contact with young Danish naturalist...