A vehicle seat including: a seat cover configuring a design surface of a seat peripheral surface portion; a seat pad covered by the seat cover and configured to elastically support a load from a seated person; an air conditioning duct protruding from the seat peripheral surface portion; an insertion hole penetrating the seat cover and the seat pad; and a connection member attached to a seat internal structure which is provided at one side of the insertion hole opposite to another side of the insertion hole from which the duct is inserted into the insertion hole, wherein the duct is attached to the seat internal structure in a state of being inserted into the insertion hole and connected with the connection member.