Fuel cell stack

A fuel cell stack comprising:

• a stacked body comprising a plurality of separators and a membrane electrode assembly which are stacked in a stacking direction, the membrane electrode assembly including an electrolyte membrane and a pair of electrodes sandwiching the electrolyte membrane therebetween, the stacked body having a first end and a second end opposite to the first end in the stacking direction;
• a first terminal plate, a first insulator, and a first end plate disposed at the first end of the stacked body;
• a second terminal plate, a second insulator, and a second end plate disposed at the second end of the stacked body;
• each of the first terminal plate and the second terminal plate being provided in a first recessed portion formed in each of the first insulator and the second insulator;
• and
• each of the first insulator and the second insulator including an outer peripheral part and a protrusion and recess portion in the outer peripheral part which is in contact with each of the separators that is disposed at the first end and the second end of the stacked body, the protrusion and recess portion having a shape corresponding to a protrusion and recess shape of the separator.