Provided is a bracket that has excellent durability while curbing an increase in weight. A bracket (1A) that has an opening (A) is made of a resin and is a tubular bracket, which has a pair of column portions (11) and a pair of bridging portions (12), in which the opening (A) is defined by the column portions (11) and the bridging portions (12). A plate portion (13) is included in at least one of the column portions (11), and in one of the bridging portions (12), a width (W1) of a bracket outer circumferential side outer surface (12f1) of the bridging portion (12) in an opening penetrating direction is maximum at an extending direction end (12e) of the bridging portion (12) in a view in an extending direction of the column portions (11).