A vehicle seat includes an ISOFIX anchor for fixing a child seat which is provided in a through-hole that extends in a front and rear direction and is formed in a seat body. The vehicle seat further includes: a cover member which covers an opening on a seat front side of the through-hole in an openable and closable manner; and a plug member which is capable of being pushed into the opening on the seat front side of the through-hole in a drawable manner, wherein the plug member is configured to block an air-flowing channel of an air which flows in from an opening on a seat back side of the through-hole and flows out from the opening on the seat front side of the through-hole in a state where the plug member is pushed into the opening.