The Yugoslavia national under-20 football team (Serbo-Croatian: Omladinska reprezentacija Jugoslavije) represented the Socialist Federal Republic of Yugoslavia at the FIFA World Youth Championship and various friendly youth tournaments in the period between the mid-1970s and the country's dissolution in the early 1990s.

However, since FIFA employs the Under-20 format for the World Youth Championship ever since its inception in 1977, the Under-20 selection was only occasionally formed to compete specifically at the tournament, in addition to a handful of other less official friendly tournaments which employ the same age format.

Their first appearance came at the 1979 tournament, where they were knocked out in the group stage after two defeats (0–2 against Poland and 0–1 against Argentina) and one win (5–0 against Indonesia).

[2] The team, coached by Mirko Jozić, had included a number of players who later appeared at FIFA World Cups, such as Zvonimir Boban, Davor Šuker, Robert Jarni, Igor Štimac, Branko Brnović and Predrag Mijatović.

The team's overall top scorer was Davor Šuker, who scored 6 goals for Yugoslavia at the 1987 U-20 World Cup,[19] and went on to become top scorer at the 1998 FIFA World Cup eleven years later, where he represented Croatia and also scored 6 goals.