Provided are: a near-infrared absorbing agent and a near-infrared absorbing composition, which have excellent near-infrared absorbing capacity; and a near-infrared absorbing resin composition in which the physical properties intrinsic to a resin are not impaired. The near-infrared absorbing agent comprises a phthalocyanine compound represented by the following Formula (1): (wherein, M represents two hydrogen atoms or the like; R1 to R8 may be the same or different from each other and each represent an alkyl group having 1 to 20 carbon atoms which is optionally substituted, or the like; and Aa, Ab, Ac and Ad each independently represent a cyclic structure represented by Formula (2), (3), or (4), with a proviso that at least one, but not all, of Aa, Ab, Ac and Ad is the cyclic structure represented by the Formula (4)).