A blood pressure meter cuff of the present invention includes an air bladder that receives a supply of air in order to compress a radial artery and an ulnar artery, and a cuff band for fixing the air bladder to a wrist including the radial artery and the ulnar artery. The air bladder has a wide portion that is arranged on the radial artery and the ulnar artery, and first and second narrow portions that are continuous with the wide portion and are narrower than the wide portion. The edges of the first and second narrow portions that are continuous with the edges of the wide portion are shaped as straight lines that are inclined with respect to the width direction.