A panel retention structure includes a retention member including a head portion, a neck portion and a flange portion being provided in the aforementioned order from an end of the retention member. The neck portion includes a dimension which is set smaller than a dimension of a first hole and a dimension of a second hole, and passes through the first hole and the second hole. The head portion is in contact with a confronting surface serving as a surface of a retention wall facing a panel body in one of a state where the head portion is elastically in contact with the panel body, and a state where an elastic wall being elastically in contact with an opposing surface serving as a surface of the retention wall which opposes the panel body is provided.