A dielectric filter for use in a microwave integrated circuit includes a substrate made of ceramics and a plurality of dielectric resonators mounted on the substrate. The substrate has a ground electrode, input and output strip lines, and a plurality of capacitance electrodes. The dielectric resonator has a body made of a dielectric material with a through hole formed therein, an inner electrode deposited on the wall defining the through hole, and an outer electrode deposited on an outer surface of the body. The inner electrode is electrically connected to the capacitance electrode, and the outer electrode is electrically connected to the ground electrode.