The "Brazilian Flag Anthem" (Portuguese: Hino à Bandeira Nacional, "Hymn to the National Flag") is a Brazilian patriotic song dedicated to the national flag of Brazil.

The song's lyrics were written by poet Olavo Bilac, and the music composed by Francisco Braga, at the request of the then mayor of Rio de Janeiro, Francisco Pereira Passos. The anthem was presented for the first time on November 9, 1906, and was originally intended to be sung by the schoolchildren of Rio de Janeiro during flag replacement ceremonies in the city's schools. Hence the reference to "youthful chest" in the lyrics. Around that same time, the anthem was considered as a possible replacement for the Brazilian National Anthem, that at that time had no official lyrics.

The Flag Anthem (as all other patriotic anthems and songs) was highly praised in the past, especially during the military dictatorship of 1964–1985, but has since lost some of its appeal. It is still performed on November 19 (Flag Day), as well as in flag replacement ceremonies.

Flag replacement ceremonies (held in military institutions, in schools, etc., and periodically also at the Praça dos Três Poderes in Brasília, the capital of Brazil, to replace the flag that hovers over the seat of the Brazilian government), usually consist of the Flag Anthem being played while the old flag is lowered, and the National Anthem being played while the new flag is raised. In the case of perpetual displays of the flag (places where the national flag is always displayed without even minimal interruptions), such as the case of the aforementioned flag in the Praça dos Três Poderes, the new flag is raised first, while the national anthem is played, and only then the old flag is lowered, while the Flag Anthem is sung.

• "Brazilian National Anthem"
• "Brazilian Republic Anthem" (Portuguese: Hino da Proclamação da República)
• Hino da Independência
• Flag of Brazil