Club de Futbol Reus Deportiu B was a Spanish football team based in Cambrils, Tarragona in the autonomous community of Catalonia.

Founded in 1960 as Futbol Club Cambrils, it was the reserve team of CF Reus Deportiu.

They played their home games at Camp Municipal de Cambrils.

Founded in 1960 as FC Cambrils, the club was incorporated in CF Reus Deportiu's structure in 2016, being renamed to CF Reus Deportiu B.

In their first season after the change, the club achieved promotion to Tercera División after finishing second in the Primera Catalana.