A filter circuit having two pass bands includes first and second bandpass filters which are connected in parallel with each other. Each of the bandpass filters includes at least a resonator group composed of a plurality of resonators arranged in orderly sequence so as to be coupled to each other to form a pass band, an input terminal coupled to a resonator on an input stage, and an output terminal coupled to a resonator on an output stage. The resonator group is composed of at least one of one or more quarter-wavelength resonators and one or more half-wavelength resonators. The resonator group of at least one of the first bandpass filter and the second bandpass filter includes both one or more quarter-wavelength resonators and one or more half-wavelength resonators.