A composite electronic component includes a capacitor device and a resistor device stacked together in a height direction. The capacitor device includes a capacitor body and first and second external electrodes. The resistor device includes a base, a resistive element, first and second upper surface conductors, first and second lower surface conductors, a first connection conductor, and a second connection conductor. The upper surface of the base of the resistor device faces the lower surface of the capacitor body of the capacitor device, the first upper surface conductor is electrically connected to the first external electrode, and the second upper surface conductor is electrically connected to the second external electrode.