To provide an electromagnetic wave absorber having high electromagnetic wave absorption ability.

In the electromagnetic wave absorber where a plurality of electromagnetic wave absorption films are laminated in front of an electromagnetic wave reflector while interposing a dielectric, each electromagnetic wave absorption film has a conductor layer formed on one surface of a plastic film. The conductor layer of each electromagnetic wave absorption film has a surface resistance in the range of 50-1500 Ω/sq., and the surface resistance of the conductor layer of the frontmost electromagnetic wave absorption film is higher by 50 Ω/sq. or more than that of the next electromagnetic wave absorption film.