Monobloco is a Brazilian bloco, or street band, that plays during Carnaval in Rio de Janeiro and is also a professional touring show.

The group was formed by members of rock band Pedro Luís e A Parede in 2000 as an education project and continues to run a percussion course each year.

Their public 'rehearsals' at Fundição Progresso in Lapa, the nightclub district of central Rio de Janeiro, regularly attract up to 4,000 paying spectators on the Friday nights leading up to Carnival.

In 2009 the city asked the bloco to move to the downtown business center, where the performance would not disturb the citizens during the weekend.

They have also toured in Portugal, Denmark, Australia and New Zealand where as well as performing at various venues they conducted workshops for local bands such as AKSamba and Wellington Batucada.