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.
They also wanted to fight against proposed new abortion restrictions which, if passed, would mean a woman who was raped could only have a termination if she could prove the crime.
"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."
Saturday's event was the fifth Slutwalk march held in Rio.