The 1527 election in Cetin (Croatian: Cetinski / Cetingradski sabor, meaning Parliament on Cetin(grad) or Parliament of Cetin(grad), or Cetinski / Cetingradski izbor) was an assembly of the Croatian Parliament in the Cetin Castle in 1527. It followed a succession crisis in the Kingdom of Hungary caused by the death of Louis II, and which resulted in the Kingdom of Croatia joining the Habsburg monarchy. The charter electing the Habsburg Archduke of Austria Ferdinand I as King of Croatia was confirmed with the seals of six Croatian nobles.

The Gusić family, also known as Gušić, was one of the twelve noble tribes of the Kingdom of Croatia, mentioned in the Pacta conventa. They originated from the hinterland of Biograd in the medieval Luka and Sidraga županijas, where they are recorded at least since the 11th century. Their main regions of influence were Krbava and Gacka, where they often served as župans and knezes at least since the early 13th century. In the 14th century branched Posedarski who seated in Posedarje, and Kurjakovići who as magnates managed to gather much wealth and have high official positions at the Hungarian royal court as well two of their members became Ban of Croatia. As experienced warriors, they actively participated in the Croatian–Ottoman and late Ottoman–Venetian Wars. Direct descendants of the tribe with the surname Gusić, and possibly Gušić, live even today in Croatia and Slovenia.