Provide a cellulose acylate film with small photoelastic coefficient, low moisture content and low haze, and a polarizing plate and a liquid crystal display device using the same. Also provided is a cellulose acylate film including at least cellulose acylate and a resin produced by hydrogenating a polymer containing a repeating unit derived from a monomer represented by the formula (1) below and hydroxyl group: in the formula (1), R1 represents a hydrogen atom or C1-5 alkyl group; each R2 represents a hydrogen atom or substituent, at least one of (R2)s being a hydroxyl group-containing substituent; moiety (A) may form, or does not necessarily form, a five- or six-membered ring; n represents an integer of 1 to 5, and when n is 2 or larger, the plurality of (R2)s may be same with or different from each other.