The present invention provides a gas barrier film including a polymer film, an anchor coat layer, and a metal oxide layer. In a gas barrier film 10, a polymer film 1 and a metal oxide layer 3 are laminated with an anchor coat layer 2 interposed therebetween, the anchor coat layer 2 has a thickness of 25 nm or more, and the anchor coat layer 2 is a layer containing an acrylic resin having an organic acid group, or a layer including a cured product of a composition containing an acrylic resin having an organic acid group.