Marcin Antoni Kubiak is a Polish astrophysicist, who obtained his professorship title on 25 April 1994. Member of the Committee of Astronomy of the Polish Academy of Sciences, a member of the Optical Gravitational Lensing Experiment (OGLE), co-discoverer of many extrasolar planetary systems. Author of academic book for astronomy students titled "Stars and Interstellar Matter". Head of the Warsaw University Observatory, University of Warsaw during 1986–2008. Editor of quarterly scientific journal Acta Astronomica and a chairman of Copernicus Foundation for Polish Astronomy.