The Brazil national football team (Portuguese: Seleção Brasileira de Futebol), nicknamed Seleção Canarinho ("Canary Squad", after their bright yellow jersey), represents Brazil in men's international football and is administered by the Brazilian Football Confederation (CBF), the governing body for football in Brazil. They have been a member of FIFA since 1923 and a member of CONMEBOL since 1916.

Brazil is the most successful national team in the FIFA World Cup, being crowned winner five times: 1958, 1962, 1970, 1994 and 2002. The Seleção also has the best overall performance in the World Cup competition, both in proportional and absolute terms, with a record of 76 victories in 114 matches played, 129 goal difference, 247 points, and 19 losses. It is the only national team to have played in all World Cup editions without any absence nor need for playoffs, and the only team to have won the World Cup in four different continents: once in Europe (1958 Sweden), once in South America (1962 Chile), twice in North America (1970 Mexico and 1994 United States), and once in Asia (2002 South Korea/Japan). Brazil was also the most successful team in the now-defunct FIFA Confederations Cup, winning it four times, in 1997, 2005, 2009, and 2013. With the capture of the gold medal at the 2016 Summer Olympics, Brazil has become one of only two countries, the others being France, to have won all men's FIFA 11-player competitions at all age levels.

In ranking standings, Brazil has the highest average football Elo rating, and the fourth all-time peak football Elo rating, established in 2022. In FIFA's ranking system Brazil holds the record for most Team of the Year first ranking wins with 13. Many commentators, experts, and former players have considered the Brazil team of 1970 to be the greatest team of all time. Other Brazilian teams are also highly esteemed and regularly appear listed among the best teams of all time, such as the Brazil teams of 1958–62 and the squads of the 1994–02 period, with honorary mentions for the gifted 1982 side. In 1996, the Brazil national team achieved 35 consecutive matches undefeated, a feat which they held as a world record for 25 years.

Brazil has developed many rivalries through the years, with the most notable ones being with Argentina—known as the Superclássico das Américas in Portuguese, Italy—known as the Clássico Mundial in Portuguese or the World Derby in English, Uruguay—known as the Clássico do Rio Negro, due to the traumatic Maracanazo, and the Netherlands due to several important meetings between the two teams at several World Cups.