"Tvoj dječak je tužan" ("Your boy is sad") was the Yugoslavian entry in the Eurovision Song Contest 1971, performed in Croatian by Krunoslav Slabinac.
The song is a love ballad, with Slabinac tell to his former lover as he is very sad because of the end of relationship.
The song was performed sixteenth on the night, following the Portugal' Tonicha with "Menina do alto da serra" and preceding Finland's Markku Aro & Koivistolaiset with "Tie uuteen päivään". At the close of voting, it had received 68 points, placing 14th in a field of 18.
It was succeeded as Yugoslavian representative at the 1972 contest by Tereza Kesovija with "Muzika i ti".