A fuel cell (2) includes: a membrane electrode assembly (6) having an electrolyte membrane (3), an anode (5) disposed on one side of the electrolyte membrane, and a cathode (4) disposed on the other side thereof; a porous passage (8) that is disposed on at least one side of the membrane electrode assembly (6), and through which a fuel gas is supplied to the anode (5) or an oxidant gas is supplied to the cathode (4); and a manifold portion (20a), through which the fuel gas or the oxidant gas is supplied to the porous passage (8), and that is provided so as to pass through the fuel cell (2) in a stacking direction, in which the electrolyte membrane (3), the anode (5), the cathode (4), and the porous passage (8) are stacked, wherein a manifold portion-side end portion of the porous passage (8) has a gas inlet at at least one of stacking surfaces of the porous passage (8) that face in the stacking direction.