In addition to the 2025 Campeonato Brasileiro Série A, Flamengo also compete in the 2025 Supercopa do Brasil, 2025 FIFA Club World Cup, 2025 CONMEBOL Copa Libertadores, the 2025 Copa do Brasil, and the 2025 Campeonato Carioca, the top tier of Rio de Janeiro's state football.

Supplier: Adidas Sponsors: PixBet (Main sponsor) / FlaBet (Back of the shirt) / Assist Card (Lower back) / Banco BRB (Shoulder) / Shopee (Sleeves) / Texaco (Numbers) / ABC da Construção (Shorts) / Zé Delivery (Socks) Last updated: 15 February 2025 Source: Competitions Goals, assists and red cards are shown.

The draw for the group stage will be held on 17 March 2025 on the CONMEBOL headquarters in Luque, Paraguay.

List of currently full members of the professional team, youth players are also often used.

Source: Playmaker, Soccerway, FBRef Players in italics have left the club before the end of the season.