Graduate, Eötvös Loránd University, Budapest, 1971. Doctor of Philosophy, Hungarian Academy of Sciences, 1977. Doctor (honorary), University Waterloo, Ontario, Canada, 1992.
Doctor (honorary), University Szeged, Hungary, 1999. Doctor (honorary), Budapest University Technology, 2002. Doctor (honorary), University Calgary, 2006.
He is the current president of the Hungarian Academy of Sciences. When Lovász was 14 he found a mathematical article written by Paul Erdős that fascinated him. One year later, he personally acquainted Erdőson
They became friends and talked about mathematics and other subjects.
This experience greatly inspired Lovász in searching for more knowledge. His advisor was Tibor Gallai.
Until 1975, Lovász worked at Eötvös Loránd University, between 1975–1982, he led the Department of Geometry at the University of Szeged. In 1982, he returned to the Eötvös University, where he created the Department of Computer Science.
The former and current scientists of the department include György Elekes, András Frank, József Beck, Éva Tardos, András Hajnal, Lajos Pósa, Miklós Simonovits, Tamás Szőnyi.
He returned to Eötvös Loránd University, Budapest, where he was the director of the Mathematical Institute (2006–2011). He served as president of the International Mathematical Union between January 1, 2007 and December 31, 2010. In 2014 he was elected the President of the Hungarian Academy of Sciences (MTA).
Member of International Mathematics Union (member executive committee 1987-1994, president since 2007), Royal Dutch Academy of Sciences, Russian Academy of Sciences, German Academy of Sciences Leopoldina, Rheinland-Westphalische Academy of Sciences, Acadamia Europaea, European Academy of Sciences, Hungarian Academy of Sciences 1990-1993.
Married; 4 children.