A connector includes a casing and a contact pin. The casing includes a storage portion. A connection body is mounted in the storage portion by being relatively displaced in a first direction. The contact pin is held by the casing. The contact pin includes an elastic contact part. The elastic contact part includes a first protrusion and a second protrusion. The first protrusion protrudes toward the storage portion. The second protrusion is separated from the first protrusion. The second protrusion faces a direction crossing the storage portion. The second protrusion protrudes in a direction crossing the first direction.