Pranas Čepėnas (4 April 1899 in Veleikiai, Kovno Governorate – 3 December 1980 in Worcester, Massachusetts) was a Lithuanian historian, encyclopedist, journalist, and lexicographer. In 1926 Čepėnas earned a diploma in history from University of Lithuania. He worked as professor of history at Vilnius University. During World War II he emigrated to Germany and later to the U.S.