A switch circuit includes: a plurality of four-terminal switches having variable-resistance elements and a rectifier element serially connected; an input line and an output line, at least one of which is multiply present, to which are connected terminals of two switches other than terminals at which the variable-resistance terminals are serially connected; and a control line to which are connected the terminals of the two switches other than the terminals at which the rectifier elements are serially connected, the control line, together with the input line and the output line, turning on and off in turn, by pair, the pair of variable-resistance elements connected to the input line and the pair of variable-resistance elements connected to the output line, among the variable-resistance elements of the plurality of four-terminal switches of the four-terminal switches connected to the input line or the output line.