A heat-sensitive transfer image-receiving sheet provided with at least one receptor layer on a support, wherein the receptor layer has a polymer containing a repeating unit derived from a monomer represented by formula (1); and a coating composition for forming the heat-sensitive transfer image-receiving sheet: wherein, R1 represents a hydrogen atom, a halogen atom or a methyl group; L1 represents a divalent linking group; R2 represents an alkylene group having 1 to 5 carbon atoms which may be further substituted; n represents an integer of 1 to 40; Z1 represents a hydrogen atom or a linear, branched or cyclic aliphatic hydrocarbon group having 1 to 30 carbon atoms which may be further substituted; and when n is 2 or more, R2s may be the same or different.