Disclosed is an optical glass containing Bi2O3, which has a characteristic Abbe number [Nu d], while maintaining an extremely high partial dispersion ratio [Theta g, F]. The optical glass contains an SiO2 component and/or a B2O3 component, while containing 40-90% by mass of a Bi2O3 component in terms of oxides. The optical glass has a partial dispersion ratio [Theta g, F] of not less than 0.63 and an Abbe number [Nu d] of not more than 27, while satisfying the following relation: partial dispersion ratio [Theta g, F] > -0.0108x Abbe number [Nu d] + 0.8529.