Jerolim Kavanjin (Italian: Girolamo Cavagnini) (4 February 1641 – 29 November 1714) was a Croatian language poet from Split then in Republic of Venice, today in Croatia. He was born into a wealthy and noble family of Split, as a descendant of Croaticised Italian family of Cavagnini. Kavanjin rose to prominence at the same time as Ignjat Đurđević: at the beginning of the 18th century. He was married to the sister of John Peter Marchi. In 1703 Kavanjin became a member of the Illyrian Academy Marchi founded in 1703. Kavanjin died in Split, aged 73.