A press-fit terminal includes an end part that is to be inserted into a through-hole of a circuit board. The end part is connected electrically to the through-hole by being in elastic contact with an inner wall of the through-hole. The press-fit terminal also includes a base part opposite to the end part. Two elastic contact pieces are between the end part and the base part and are disposed to face each other through an opening. A stress dispersion part is provided in at least one of a region that includes a border between the end part and the elastic contact pieces and a region that includes a border between the base part and the elastic contact pieces. The stress dispersion part protrudes in the same direction as an expanding direction in which the elastic contact pieces expand.