The 2018 CONMEBOL Libertadores de Beach Soccer was the third edition of the Copa Libertadores de Beach Soccer (known natively in Spanish as the Copa Libertadores de Futbol Playa), an annual continental beach soccer club tournament contested primarily between the champions of the domestic leagues of South American nations who are members of CONMEBOL.

[1] It was organised by CONMEBOL in cooperation will local entities: the Brazilian Football Confederation (CBF) and Brazil Beach Soccer Confederation (CBSB)[2] The event was originally due to take place in Belém, Pará State, Brazil[2] but a change of venue was announced on 23 October.

[4] As per Regulations Article 15,[5] the tournament starts with a group stage, played in a round robin format.

Each team had to submit a squad of 12 players, including a minimum of two goalkeepers (Regulations Article 33).

[5] The draw to split the twelve teams into three groups of four took place on 19 November at 19:00 local time in Rio de Janeiro, Brazil at the headquarters of the Brazilian Football Confederation.