A heating device includes a heating unit that heats a member to be heated, which is transported, as a result of a contact portion of the heating unit being in contact with the member to be heated, a heat pipe that is disposed on a portion of the heating unit different from the contact portion in such a manner as to extend in a widthwise direction crossing a transport direction of the member to be heated and that includes a crimped portion formed at a first end of the heat pipe, a rotating body that rotates in such a manner as to press the member to be heated against the contact portion of the heating unit, and a power input unit that is disposed on a second end side of the heat pipe and that inputs a rotational force at least to the rotating body.