Abstract: A switching circuit includes a first antenna terminal and a second antenna terminal, a first input-output terminal and a second input-output terminal, a plurality of switches and a ground switch. When an electrical connection destination of the first input-output terminal is switched to the first antenna terminal, a first path switch included in the plurality of switches and provided along a first path connecting the first input-output terminal and the first antenna terminal to each other, and a second path switch and the ground switch provided along a second path connecting the second input-output terminal and the ground to each other, the second path switch included in the plurality of switches, are in conducting states, and a third path switch included in the plurality of switches and provided along a third path connecting the first path and the second path to each other is in a non-conducting state.