|Kęstutis Lapinskas was born in 1937. In 1960, he graduated from the Faculty of Law of Vilnius University. In 1966, he finished his post-graduate studies in M. V. Lomonosov Moscow State University and maintained his doctoral thesis. In 1966–1990, he was a senior lecturer, associate professor, Head of the Department of Public Law of the Faculty of Law of Vilnius University. In 1990–1992, he was a deputy of the Supreme Council-Reconstituent Seimas, a member of the group for the preparation of a draft Constitution and Chairperson of the Provisional Commission for Preparation of a Draft Constitution. He is a signatory to the Act on the Restoration of the Independent State of Lithuania. In 1993–1999, he was a justice of the Constitutional Court. In 1999–2000, he was the Chairperson of the Department of Administrative Cases of the Court of Appeal of Lithuania, whilst, in 2000–2002, he was the President of the Supreme Administrative Court of Lithuania. In 2002, he was once again appointed a justice of the Constitutional Court and worked in this capacity until 2011.
In 2008–2011, he was the President of the Constitutional Court.