A decurling device includes: a rotary body; an endless correction belt configured to correct curl of a recording medium passing between the rotary body and the correction belt; and a pressure contact unit disposed inside the correction belt, an opposite surface of the pressure contact unit to the rotary body being supported by a support unit so as to be in pressure contact with the rotary body, in which a center portion, in an axial direction of the rotary body, of at least one of a contact portion of the pressure contact unit or a contact portion of the support unit further protrudes toward the other of the contact portion of the pressure contact unit and the contact portion of the support unit than both end portions thereof.