Zigmantas Kiaupa (29 June 1942 in Pakiaunis village near Ignalina) is a Lithuanian historian, archivist, and professor. His specialty is political history of the Grand Duchy of Lithuania, history of cities and city dwellers, and study of historical sources.

Important works

• Instrukcijos feodalinių valdų administracijai Lietuvoje XVII–XIX a, 1985.
• Šiauliai XV–XVIII a.: Lietuvos mažujų miestų raidos problemos (Ph.D thesis), 1993.
• Lietuvos istorija iki 1795 m. (together with J. Kiaupienė and A. Kuncevičius),1995, (reissued in 1998); translated into English as The History of Lithuania before 1795, 2000.
• The History of Lithuania, 2000.
• Lietuvos valstybės istorija, 2004.