Uzelac (Serbian Cyrillic: Узелац) is an old South Slavic surname and it originates from Lika and Krbava, but also from Dalmatia and Bosanska Krajina. It is predominantly used by ethnic Serbs of the Eastern Orthodox Church.
The surname has a root in the verb "ùzēti" which means "to take (away)" in Serbian and refers to the man who married into his wife's household, rather than taking her to his own, i.e. he was "taken (away)" from his family into another one.
In Spring of 1668 census in Trnovac, Bužim or Smiljan (villages near Gospić, Croatia) there is a record of Novak Uzelac and 5 members of his family.
Among 12 other families, Uzelac's are one of the first residents and founders of Staro Selo, Lika-Senj County (Old Village) a village near Otočac, Croatia.
In 1696 Bishop Sebastian Glavinić de Glamoć (1630–1697) while visiting Lika and Krbava discovers Serbian Orthodox Priest Nikola Uzelac who was offering his services not only to Serbian Orthodox but also to Roman Catholic people as well.
In (Plemenski rječnik ličko-krbavske županije) R. Grujic notes that in 1915 census Uzelac's were the largest clan in Lika and Krbava with over 319 families. At that time all families who carried the same last name also belonged to the same clan (плeme, pleme plural: плeмeна, plemena).