A power amplifier circuit includes an amplifier transistor which amplifies a radio frequency signal applied to its base and outputs the amplified signal; a resistance element having a first end, and a second end electrically connected to the base of the amplifier transistor; a first bias transistor having a collector to which a first voltage is applied, a base to which a first bias voltage is applied, and an emitter electrically connected to the first end of the resistance element and which supplies a bias current to the base of the amplifier transistor through the resistance element; and a second bias transistor having an emitter electrically connected to the emitter of the first bias transistor and the first end of the resistance element, a base to which a second bias voltage is applied, and a collector to which a second voltage lower than the first voltage is applied.