A gas barrier laminate according to the present disclosure includes: a resin substrate; a first coating layer containing a carboxylic acid polymer; and a second coating layer containing a polyvalent metal compound and a resin, wherein: the resin substrate, the first coating layer, and the second coating layer are laminated in this order; a ratio of a thickness of the second coating layer to a thickness of the first coating layer is in the range of 1.0 or more and 4.0 or less; and the second coating layer satisfies at least one of the following conditions 1 to 3: (condition 1) a haze of the second coating layer is 8% or less; (condition 2) a surface roughness Ra of the second coating layer is 1/2 or less of the thickness of the second coating layer; and (condition 3) the number of concave portions having a diameter of 1.5 µm or more per unit area on a surface of the second coating layer opposite to the first coating layer is 2/0.01 mm 2 or less.