Bogumił Kazimierz Brzezinski (born 22 May 1943) is a Polish chemist, professor of chemistry science who specialises in the field of infrared spectroscopy and hydrogen bonds.

[1] In 1967 he graduated from the Faculty of Mathematics, Physics and Chemistry at the Adam Mickiewicz University in Poznań with M.Sc.

He was Vice-Dean of the Faculty of Chemistry UAM in the years 1990–1996.

In the years 1975–1977 Brzezinski was Alexander von Humboldt Fellow at the Faculty of Biophysic of University of Munich in Germany.

Many times he was visiting Professor of Humboldt University (Faculty of Biophysic Charite) in Berlin.