The surname Rubalcaba may refer to:
Alexis Rubalcaba (born 1972), retired Cuban amateur boxer, 1999 Pan American Games gold medalist
Alfredo Pérez Rubalcaba (born 1951), as of 2012 the Secretary General of the Spanish Socialist Workers' Party
Gonzalo Rubalcaba (born 1963), Grammy Award-winning Cuban jazz pianist and composer
Guillermo Rubalcaba (1927–2015), Cuban pianist and bandleader (Charanga Rubalcaba)
Jacobo Rubalcaba (1895–1960), Cuban musician, arranger, composer, bandleader and educator
Mario Rubalcaba, Mexican American rock drummer from San Diego (also known by the pseudonym Ruby Mars)
