The Australian Energy Regulator (AER) is the regulatory authority for the wholesale electricity and gas markets in Australia.

The AER's current functions are focused on regulating the natural monopoly transmission and distribution sectors of the national electricity market, monitoring the wholesale electricity market and enforcing electricity market rules.

Under the national electricity law and national electricity rules, the AER's key responsibilities at the present time include: The AER board currently has five members who are statutory appointments.

The remaining members are Eric Groom, Catriona Lowe and Justin Oliver.

The chief executive officer of the AER is Elizabeth Develin.