Cognomen Bartasius (Bartasius 
) , in all the world, is a rare family name. The last name Bartasius is habitual in Lithuania, where it is quite a rare surname, the United States, where it is a very rare surname, and the United Kingdom, where it is an extremely rare surname.
Mr, Maureen, Mazvydas, Michael, Michele, Simonas, Suzanne, Stanley, Andrius, Arvydas, Olivia, Bridget, Ramunas, Dziugas, Jessica, Nerijus, Evaldas, Vytautas, Alexandra, Catherine, Elizabeth, Karolis, Victor, Vaidas, Justin, Ann, Joe, Mark, Dana, Dave, Gene, Lisa, Vida, Brian, Rokas, Rimas, Jonas, Tadas, Tomas, Nedas, Steven, Andrea, Andrew, Darius, Joseph, Joanne, Vidmantas, and Stanislovas