An acoustic wave device includes: a substrate; a first acoustic wave resonator and a second acoustic wave resonator located on the substrate; a first wiring line electrically coupled to the first acoustic wave resonator, located on the substrate, and located between the first acoustic wave resonator and the second acoustic wave resonator; and a second wiring line electrically coupled to the second acoustic wave resonator, located on the substrate, located between the first acoustic wave resonator and the second acoustic wave resonator, having an electric potential different from an electric potential of the first wiring line, and having a thickness greater than a thickness of the first wiring line.