Lieutenant General Susan May Coyle, AM, CSC, DSM (born 21 May 1970) is a senior officer in the Australian Army.

She was appointed Commander Joint Task Force 633, with responsibility for all Australian operations in the Middle East, from January to November 2020.

[2][5] Coyle's early career was marked by a variety of communications appointments, before she was selected as aide-de-camp to the Commander Australian Theatre from 1998 to 1999.

In 2002, she deployed on Operation Citadel, Australia's contribution to the United Nations Mission of Support to East Timor, as J6, the staff officer responsible for communications.

She attended the Australian Command and Staff College in 2005, graduating with a Master of Management in Defence Studies from the affiliated University of Canberra.

[1][2][5] In recognition of her "outstanding achievement" as a "commander and leader" of the regiment, Coyle was awarded the Conspicuous Service Cross in the 2011 Queen's Birthday Honours.

In June 2014 Coyle, now a colonel, deployed to the Middle East as Deputy Commander – Afghanistan in Joint Task Force 633.

[1][2][5] The 6th Brigade oversees intelligence, surveillance, target acquisition and reconnaissance units in the Australian Army to provide specialist combat support to land-based forces.