An actinic ray-curable offset ink composition comprising: a (meth)acrylate compound, a photopolymerization initiator, and a pigment, and satisfying conditions to described below: the actinic ray-curable offset ink composition contains no photosensitizer, the photopolymerization initiator comprises an acylphosphine oxide compound, an α-aminoalkylphenone, and an α-hydroxyalkylphenone, a molar extinction coefficient of the α-aminoalkylphenone is at least 5,000 (1/mol·cm) within a light wavelength region from 350 to 400 nm and at least 40,000 (1/mol·cm) within a light wavelength region from 300 to 350 nm, and a molar extinction coefficient of the α-hydroxyalkylphenone is at least 40,000 (1/mol·cm) within a light wavelength region from 250 to 300 nm, the photopolymerization initiator is composed only of compounds having a weight-average molecular weight of 300 to 2,000, a total weight of the actinic ray-curable offset ink composition contains not more than 5% by weight of the acylphosphine oxide compound, the (meth)acrylate compound is composed only of compounds having 3 or more acrylate functional groups per molecule and having a weight-average molecular weight of 400 to 2,000, the (meth)acrylate compound comprises at least one compound selected from the group consisting of: ditrimethylolpropane tetra (or tri) acrylate, ethylene oxide-modified pentaerythritol tetra (or tri) acrylate, propylene oxide-modified pentaerythritol tetra (or tri) acrylate, ethylene oxide-modified trimethylolpropane triacrylate, propylene oxide-modified trimethylolpropane triacrylate, and propylene oxide-modified glycerol triacrylate, and the (meth)acrylate compound comprises dipentaerythritol hexaacrylate and/or dipentaerythritol pentaacrylate. a (meth)acrylate compound, a photopolymerization initiator, and a pigment, and satisfying conditions to described below: the actinic ray-curable offset ink composition contains no photosensitizer, the photopolymerization initiator comprises an acylphosphine oxide compound, an α-aminoalkylphenone, and an α-hydroxyalkylphenone, a molar extinction coefficient of the α-aminoalkylphenone is at least 5,000 (1/mol·cm) within a light wavelength region from 350 to 400 nm and at least 40,000 (1/mol·cm) within a light wavelength region from 300 to 350 nm, and a molar extinction coefficient of the α-hydroxyalkylphenone is at least 40,000 (1/mol·cm) within a light wavelength region from 250 to 300 nm, the photopolymerization initiator is composed only of compounds having a weight-average molecular weight of 300 to 2,000, a total weight of the actinic ray-curable offset ink composition contains not more than 5% by weight of the acylphosphine oxide compound, the (meth)acrylate compound is composed only of compounds having 3 or more acrylate functional groups per molecule and having a weight-average molecular weight of 400 to 2,000, the (meth)acrylate compound comprises at least one compound selected from the group consisting of: ditrimethylolpropane tetra (or tri) acrylate, ethylene oxide-modified pentaerythritol tetra (or tri) acrylate, propylene oxide-modified pentaerythritol tetra (or tri) acrylate, ethylene oxide-modified trimethylolpropane triacrylate, propylene oxide-modified trimethylolpropane triacrylate, and propylene oxide-modified glycerol triacrylate, and the (meth)acrylate compound comprises dipentaerythritol hexaacrylate and/or dipentaerythritol pentaacrylate. the actinic ray-curable offset ink composition contains no photosensitizer, the photopolymerization initiator comprises an acylphosphine oxide compound, an α-aminoalkylphenone, and an α-hydroxyalkylphenone, a molar extinction coefficient of the α-aminoalkylphenone is at least 5,000 (1/mol·cm) within a light wavelength region from 350 to 400 nm and at least 40,000 (1/mol·cm) within a light wavelength region from 300 to 350 nm, and a molar extinction coefficient of the α-hydroxyalkylphenone is at least 40,000 (1/mol·cm) within a light wavelength region from 250 to 300 nm, the photopolymerization initiator is composed only of compounds having a weight-average molecular weight of 300 to 2,000, a total weight of the actinic ray-curable offset ink composition contains not more than 5% by weight of the acylphosphine oxide compound, the (meth)acrylate compound is composed only of compounds having 3 or more acrylate functional groups per molecule and having a weight-average molecular weight of 400 to 2,000, the (meth)acrylate compound comprises at least one compound selected from the group consisting of: ditrimethylolpropane tetra (or tri) acrylate, ethylene oxide-modified pentaerythritol tetra (or tri) acrylate, propylene oxide-modified pentaerythritol tetra (or tri) acrylate, ethylene oxide-modified trimethylolpropane triacrylate, propylene oxide-modified trimethylolpropane triacrylate, and propylene oxide-modified glycerol triacrylate, and ditrimethylolpropane tetra (or tri) acrylate, ethylene oxide-modified pentaerythritol tetra (or tri) acrylate, propylene oxide-modified pentaerythritol tetra (or tri) acrylate, ethylene oxide-modified trimethylolpropane triacrylate, propylene oxide-modified trimethylolpropane triacrylate, and propylene oxide-modified glycerol triacrylate, and the (meth)acrylate compound comprises dipentaerythritol hexaacrylate and/or dipentaerythritol pentaacrylate.