A multiplexer circuit and a display panel having the multiplexer circuit are provided. The multiplexer circuit includes a plurality of first transistors, a plurality of first control lines, a plurality of second control lines, a plurality of first transmission lines, and a plurality of second transmission lines. The first transistors are sequentially arranged along a first direction. The first control lines extend along the first direction and are disposed on a first side of the first transistors. The second control lines extend along the first direction and are disposed on a second side of the first transistors. The first transmission lines are respectively coupled between control terminals of a first group of the first transistors and the first control lines. The second transmission lines are respectively coupled to control terminals of a second group of the first transistors and the second control lines.