Cartridge and inhaler

To provide an inhaler cartridge and an inhaler including a novel structure.Provided is a cartridge for an inhaler. The cartridge includes: a housing including an accommodation space capable of accommodating a liquid, an air flow passage, and a partition member partitioning the accommodation space and the air flow passage in a longitudinal direction; a heater configured to be capable of heating the liquid and arranged in the air flow passage; and an air inlet port provided at a position facing the partition member and communicating with the air flow passage. The housing includes an air outlet port communicating with the air flow passage, and a position of the air outlet port in a transverse direction at least partially overlaps in a longitudinal direction with a position of the heater in a transverse direction, or an end of the air outlet port close to a side of the air inlet port in a transverse direction is positioned on a side of the accommodation space relative to an end of the heater close to a side of the air inlet port in a transverse direction.