Edvín Bayer (anglicized as Edwin Bayer; 17 February 1862 – 17 March 1927) was a Czech botanist. He worked at the National Museum in Prague and specialised in lichens and plant fossils.
Bayer was born in Chotěboř where his father was a notary. His brother Karel Bayer (1854–1930) became a prominent professor of surgery. He went to the local school before going in 1874 to the Prague Gymnasium. In 1882 he joined the German University in Prague to study law but moved to the Czech University in Prague two years later to graduate in the natural sciences in 1888. He worked as an assistant to Ladislav Josef Čelakovský at the museum and in 1889 he wrote a dissertation on the lichens of Bohemia and received a doctorate in 1891. He joined the Museum of the Kingdom of Bohemia in 1892 under There he graduated in natural sciences, which he finished in 1888. He then worked for three years as a paid assistant in the botanical department of the Museum of the Kingdom of Bohemia under Antonín Frič. He also taught botany at the Czech University along with Čelakovský. In 1918 he became a director of the botanical department of the museum.[1] [2]