Pixote: A Lei do Mais Fraco (Portuguese pronunciation: [piˈʃɔtʃi a ˈlej du ˈmajs ˈfɾaku], lit. "Pixote (small child): The Law of the Weakest") is a 1980 Brazilian crime drama film directed by Héctor Babenco. The screenplay was written by Babenco and Jorge Durán, based on the book A Infância dos Mortos (The Childhood of the Dead Ones) by José Louzeiro. The film is a docudrama account of Brazil's lower classes youth exposure to organized crime and police corruption.

The film features Fernando Ramos da Silva (who was killed at the age of 19 by Brazilian police in São Paulo) as Pixote and Marília Pêra as Sueli. The plot revolves around Pixote, a young boy who is used as a child criminal in muggings and drug transport. The film was selected as the Brazilian entry for the Best Foreign Language Film at the 54th Academy Awards, but it was disqualified.

In 2015, the Brazilian Film Critics Association (Abraccine) voted Pixote the 12th greatest Brazilian film of all time, in its list of the 100 best Brazilian films.