An elastic wave device includes a piezoelectric substrate, first and second IDT electrodes on a first main surface, and electrode lands each connected to one of the first and second IDT electrodes. First and second side portions extend in a direction perpendicular or substantially perpendicular to a polarization axis direction and to a direction normal to the piezoelectric substrate. The length of the piezoelectric substrate along the polarization axis direction at the first side portion is shorter than that at the second side portion. The first IDT electrode is closer to the first side portion than the second IDT electrode. The electrode lands include a first electrode land connected to the first busbar of the first IDT electrode without having the second IDT electrode interposed therebetween, and a second electrode land being at the same potential as the first busbar of the first IDT electrode.