A straddled electric vehicle comprising: a rear wheel; a rear arm supporting the rear wheel such that the rear wheel is rotatable; a vehicle body frame supporting the rear arm such that the rear arm is swingable; a seat located above the vehicle body frame; a drive unit provided on the rear arm for rotating the rear wheel; and a power supply unit located in the vehicle body frame for supplying electric power to the drive unit, wherein the drive unit comprises a motor, the motor overlaps the rear wheel in a side view of the vehicle, the power supply unit comprises: a battery; and a controller for supplying electric power stored in the battery to the drive unit, the vehicle body frame comprises: a head pipe; and a pivot shaft for supporting the rear arm such that the rear arm is swingable, the power supply unit is located between the head pipe and the pivot shaft in a side view of the vehicle, a foremost point of the power supply unit is located forward of the seat, and an uppermost point of the power supply unit is located higher than a lower end or side of the head pipe; wherein the battery is located above the controller, characterised in that the vehicle body frame includes: a left first frame member and a right first frame member and a left second frame member and a right second frame member, the left and right first frame members extending rearward from the head pipe, the left and right second frame members are located lower than the left and right first frame members and extend rearward from the head pipe; and the battery overlaps the left and right first frame members and the left and right second frame members in a side view of the vehicle. a rear wheel; a rear arm supporting the rear wheel such that the rear wheel is rotatable; a vehicle body frame supporting the rear arm such that the rear arm is swingable; a seat located above the vehicle body frame; a drive unit provided on the rear arm for rotating the rear wheel; and a power supply unit located in the vehicle body frame for supplying electric power to the drive unit, wherein the drive unit comprises a motor, the motor overlaps the rear wheel in a side view of the vehicle, the power supply unit comprises: a battery; and a controller for supplying electric power stored in the battery to the drive unit, a battery; and a controller for supplying electric power stored in the battery to the drive unit, the vehicle body frame comprises: a head pipe; and a pivot shaft for supporting the rear arm such that the rear arm is swingable, a head pipe; and a pivot shaft for supporting the rear arm such that the rear arm is swingable, the power supply unit is located between the head pipe and the pivot shaft in a side view of the vehicle, a foremost point of the power supply unit is located forward of the seat, and an uppermost point of the power supply unit is located higher than a lower end or side of the head pipe; wherein the battery is located above the controller, characterised in that the vehicle body frame includes: a left first frame member and a right first frame member and a left second frame member and a right second frame member, the left and right first frame members extending rearward from the head pipe, the left and right second frame members are located lower than the left and right first frame members and extend rearward from the head pipe; and the battery overlaps the left and right first frame members and the left and right second frame members in a side view of the vehicle.