An acoustic wave device includes first to third acoustic wave resonators connected in series, and the first acoustic wave resonator and the third acoustic wave resonator are respectively disposed on one side and another side of the second acoustic wave resonator. In the first to third acoustic wave resonators, a first common busbar is connected to one of reflectors of the first and second acoustic wave resonators, and a second common busbar is connected to one of reflectors of the second and third acoustic wave resonators.