A fuel cell stack at least includes a stack body including a plurality of power generation cells each having a membrane electrode assembly stacked in a stacking direction, and a first dummy cell provided at one end of the stack body in the stacking direction. A dummy structural body of the first dummy cell is joined to a dummy resin frame member through an adhesive layer which adheres a first outer peripheral portion and a second outer peripheral portion, and inner periphery of the dummy resin frame member to each other.