Sociedade Esportiva Palmeiras (Portuguese pronunciation: [pawˈmejɾɐs]) is a professional football club, based in São Paulo, Brazil.

The club was founded on August 26, 1914, as Palestra Italia (pronounced: [paˌlɛstɾiˈtaliɐ]), but changed to the current name on September 14, 1942. It is one of the most popular and successful Brazilian clubs, with around 17 million supporters and 126,000 season ticket holders, including a large number of Brazilians of Italian ancestry. Despite being primarily an association football team, Palmeiras competes in a number of different sports, most notably basketball. The football team plays in the Campeonato Paulista, the state of São Paulo's premier state league, as well as in the Campeonato Brasileiro Série A, the top tier of the Brazilian football league system.

Palmeiras is one of the most successful clubs in Brazilian football. The team has won 13 national competitions, more than any other club in Brazil. The club's most important titles are 1 Copa Rio, 1 Copa Libertadores, 9 Brazilian National League Titles and 4 national cups (3 Copa do Brasil and 1 Copa dos Campeões). Palmeiras is also the second most valuable club in the Americas, being worth R$1.5 billion (approximately US$500 million) in 2016 by Forbes Mexico.

In 1999, the team was declared the Champion of the Century in Brazilian football.