The 1955 edition of theCampeonato Carioca kicked off on August 7, 1955 and ended on April 4, 1956. It was organized by FMF (Federação Metropolitana de Futebol, or Metropolitan Football Federation). Twelve teams participated.Flamengo won the title for the 13th time. no teams were relegated.^[1][2]

The tournament would be divided in two stages:^[2][1]

• First phase: The twelve teams all played against each other in a double round-robin format. The six best teams qualified to the Third round (The first and second rounds were part of the First phase). The team with the most points qualified to the Finals.
• Third round: The remaining six teams all played in a single round-robin format against each other. The team with the most points qualified to the Finals.
• Finals: The finals would be disputed in a best-of-three-points series. In case the same team won all three rounds, it won the title automatically.

Flamengo vAmérica

26 March 1956Final	Flamengo	1 – 0	América	Maracanã,Rio de Janeiro
	Evaristo	Report		Attendance: 79,950 Referee: Frederico Lopes

América vFlamengo

1 April 1956Final	América	5 – 1	Flamengo	Maracanã,Rio de Janeiro
	Ferreira Alarcón Canário Leônidas Romeiro	Report	Joel	Attendance: 94,516 Referee:Mário Vianna

Flamengo vAmérica

4 April 1956Final	Flamengo	4 – 1	América	Maracanã,Rio de Janeiro
	Dida	Report	Romeiro	Attendance: 139,599 Referee:Mário Vianna

• Campeonato Carioca seasons
• 1955 in Brazilian football leagues

• Articles with short description
• Short description matches Wikidata