Provided are a curable composition, a cured film, an optical filter, a solid image pickup element, an image display device, an infrared sensor, a dispersing auxiliary agent, a dispersion, and a method of manufacturing a dispersion. With the curable composition, a cured film having excellent moisture resistance in which the formation of an aggregate derived from a compound having a colorant skeleton is suppressed can be formed. This curable composition includes: a compound A having a structure in which at least one functional group selected from an acid group having a pKa of 3 or lower and a Clog P value of 1.1 or higher, an anionic group obtained by dissociating one or more hydrogen atoms from the acid group, or a salt of the acid group is bonded to a -conjugated structure of a colorant skeleton and having a maximum absorption wavelength in a wavelength range of 650 to 1200 nm; a curable compound; and a solvent.