A three-dimensional collar shape retaining hanger prevents collars of a plurality of garments from being crushed and is capable of being stacked in a large number. The hanger has a hook portion and a hanger body. Between the hook portion and the hanger body, a connecting plate part which is a central collar supporting portion body is provided to connect the hook portion and the hanger body. A pair of first curved parts which protrudes toward a rear side of the hanger so as to abut on a rear neck portion of a collar is connected to right and left sides of the connecting plate part. To end portions of the first curved parts, a pair of second curved parts is connected at each distal end thereof. Each base end of the second curved parts is connected to the hanger body. A portion between the distal end and the base end of each of the second curved parts protrudes toward the front side of the hanger so as to abut on an inside of a front portion of the collar. By this structure, a curve on a rear neck portion of a collar is supported by the first curved parts while a curve on a front portion of the collar is supported by the second curved parts, thereby retaining a whole curve of the collar. Therefore, when a large number of garments hung on the three-dimensional collar shape retaining hangers are stacked, the collars are not crushed.