In a balanced-type surface acoustic wave filter, a first longitudinally coupled resonator surface acoustic wave filter unit connected to an unbalanced signal terminal is connected in a cascade arrangement to a second longitudinally coupled resonator surface acoustic wave filter unit connected to a first balanced signal terminal and a second balanced signal terminal. When the number of electrode fingers included in each of narrow pitch electrode finger portions in a center second IDT of the first longitudinally coupled resonator surface acoustic wave filter unit is defined as N1, and the number of electrode fingers included in each of narrow pitch electrode finger portions in a center fifth IDT of the second longitudinally coupled resonator surface acoustic wave filter unit is defined as N2, the numbers N1 and N2 are set to N1>N2.