The topless participants had slogans written on their bodies and banners as they marched through the streets and blocked traffic in Rio de Janeiro's, Brazil.
The event, which featured powerful messages and colourful displays, was held along Rio de Janeiro's Copacabana beachfront in Brazil.
Demonstrators scrawled words onto their breasts, stomachs, backs and arms with lipstick and crayons and there was samba dancing.
"Brazil is one of the worst places for a woman to travel alone. When I travel I bring a special door jam so that my hotel room cannot be opened."
Indara Costa, 18, said: "Men in Brazil think we are objects. We want to be able to do what we want with our bodies without being harassed."
Saturday's event was the fifth Slutwalk march held in Rio.