A chip antenna module includes: a substrate including a feed wiring layer to provide a feed signal, a feeding via connected to the feed wiring layer, and a dummy via separated from the feed wiring layer; and a chip antenna disposed on a first surface of the substrate and including a body portion formed of a dielectric substance, a radiating portion that extends from a first surface of the body portion and is connected to the feeding via and the dummy via, and a grounding portion that extends from a second surface of the body portion opposite the first surface of the body portion.