Landsbergis' father is Vytautas V. Landsbergis, a Lithuanian writer, and his mother is Giedrė Bukelytė. Gabrielius is the grandson of Vytautas Landsbergis, a prominent Lithuanian politician, who was one of the founders of Sąjudis and the Chairman of the Reconstituent Seimas of Lithuania after its independence declaration from the Soviet Union.
