Rajko Dujmić (born in Zagreb, 7 August 1954) is a Croatian songwriter, composer and music producer mainly known as a member of pop group Novi fosili.
He composed the winner entry of Eurovision Song Contest 1989, Rock me, along Stevo Cvikić. They also composed the two previous Yugoslavian entries, Ja sam za ples (sung by Novi Fosili) and Mangup (sung by Srebrna Krila).
He received Croatian music award Porin for lifetime achievement in 2013.
He married his wife, Snežana, on 2 December 1990.