A fuel cell is provided with: a power generation element layer which includes an electrolyte film, and an anode and a cathode that are disposed on both sides of the electrolyte film; a fuel gas flow path layer which is disposed on the anode side of the power generation element layer and supplies fuel gas to the anode while causing the fuel gas to flow along the fuel gas flow direction approximately orthogonal to the stack direction in which respective layers of the fuel cell are stacked; and an oxidizing gas flow path layer which is disposed on the cathode side of the power generation element layer and supplies oxidizing gas to the cathode while causing the oxidizing gas to flow along the oxidizing gas flow direction opposite to the fuel gas flow direction. Compared to an upstream region including an uppermost-stream position along the fuel gas flow direction of a power generation region that is a region in which power is generated in the fuel cell and a downstream region including a downmost-stream position along the fuel gas flow direction of the power generation region, a midstream region that is the remaining region of the power generation region has larger water-vapor transfer resistance between the anode side and the cathode side.