Flamengo's fiercest and longest-standing rivalries are with the other "Big Four" of Rio de Janeiro: Fluminense, Botafogo🎉 and Vasco da Gama; as well as interstate rivalries with Atletico MG and Palmeiras.

The Clssico dos Milhes (English: Classic of Millions) is the name🎉 given to Flamengo and Vasco da Gama association football derby, both teams from the city of Rio de Janeiro, Brazil.🎉 Considered as one of the most fiercely contested derbies in Brazilian football, both in historic rivalry and in popularity.