Juliano Roberto Antonello (born 19 November 1979), commonly known as Juca, is a Brazilian football coach and former player who played as a defensive midfielder.

Born in Passo Fundo (RS), Juca came through the youth categories of Internacional, making his senior debuts in 2000.

He made his official debut for Partizan on 19 July 2007, helping his team to a 6–1 away win over Zrinjski in the first leg of the UEFA Cup first qualifying round.

His first season in Serbia was a success with Juca helping Partizan win the national league and cup titles.

[3] Juca made his La Liga debut on 29 August 2009, playing the full 90 minutes in a 2–3 loss against Real Madrid at Santiago Bernabéu.