In accordance with an aspect of the present disclosure, there is provided an electric compressor including a compression portion configured to compress a refrigerant and discharge the compressed refrigerant, an electric motor configured to drive the compression portion, an inverter portion configured to control and drive the electric motor, and an inverter housing accommodating the inverter portion. The inverter portion includes a circuit board, a busbar fixed to the inverter housing and electrically connecting an external power supply to the circuit board, a noise reduction circuit mounted on the circuit board and configured to reduce a noise component contained in current flowing through the busbar, a first fastener fastening the circuit board to the inverter housing, and a second fastener fastening the busbar to the circuit board. The circuit board includes a first fastening hole through which the first fastener is inserted, a second fastening hole that is disposed adjacent to the first fastening hole and through which the second fastener is inserted, and a slit extending between the first fastening hole and the second fastening hole from a peripheral edge of the circuit board. The first fastener electrically connects the circuit board as a ground of the noise reduction circuit to the inverter housing.

Other aspects and advantages of the disclosure will become apparent from the following description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the disclosure.