PROBLEM TO BE SOLVED: To provide a nozzle for an inhaler capable of injecting humidified air in spiral flow and also preventing the humidified air from being retained on upstream side with respect to a tip opening even if injection of the humidified air through the tip opening is restricted/suppressed.SOLUTION: A nozzle for an inhaler includes an outer cylinder part 32 and an inner cylinder part 25 to form an annular space 34 between the outer cylinder part 32 and a main inner cylinder part 27. The outer cylinder part 32 is closed on a base end surface while opened on a tip surface as an injection port. The inner cylinder part 25 is opened on a tip surface inward with respect to the tip surface of the outer cylinder part 32, and opened to outside on a base surface through a base end opening 28a. A humidified air inflow port 30(33) is formed on an outer peripheral surface of the outer cylinder part 32.
