A vehicular interior part includes an armrest extending in a vehicular front-rear direction, the armrest including a vehicular interior edge portion and a vehicular exterior edge portion, and an interior part component where the armrest is mounted from an upper side at at least the vehicular interior edge portion and the vehicular exterior edge portion. One of the vehicular interior edge portion and the vehicular exterior edge portion is mounted on the interior part component so as to be removed from the interior part component relatively more easily than another one of the vehicular interior edge portion and the vehicular exterior edge portion.