Deulofeu spent last season in England with Everton whilst Rafinha remained in Spain with Celta Vigo - but neither will be loaned out next season.
The decision was made by new boss Luis Enrique, and was one of the first following his appointment on a two-year deal.
Enrique knows both players well, having coached them for Barcelona B during his three years in charge, whilst he also signed Rafinha on-loan for Celta last term.
Both players impressed during their time away from Camp Nou and interest in the pair was big, but Enrique wants both to remain.
21-year-old midfielder Rafinha, brother of Bayern Munich's Thiago, has never played for Barcelona's first team, whilst Deulofeu has made just two appearances for the Catalan giants.
Reports in Spain suggest that Everton - who wanted Deulofeu back for next season - have requested another Barcelona youngster join them on loan.