Justas Vincas Paleckis (born 1 January 1942 in Kuybyshev, current Samara) is a Lithuanian ex-communist and politician, signatory of the Act of the Re-Establishment of the State of Lithuania, and Member of the European Parliament for the Social Democratic Party of Lithuania. He is also a part of the Party of European Socialists. Justas was born in Samara, Russia where his family resided during the Second World War. His father was communist and journalist Justas Paleckis. Later the family returned to Lithuania, where he finished school (in 1959) and studied journalism at Vilnius University (in 1964).
J. Paleckis is married and has two sons (Algirdas and Rimvydas) and one daughter (Justina).