Andrew Justin Stewart Coats AO (born 1 February 1958) is an Australian–British academic cardiologist who has particular interest in the management of heart failure.

in Physiological Sciences with First-Class Honours and won the Rose Prize; and Clare College, Cambridge, where he read medicine, earning a M.B.

[9][10][11] Stewart Coats commenced his research career in hypertension, where he did some of the early work on the clinical value of 24-hour ambulatory blood pressure monitoring.

[14] He coined the term "The Muscle Hypothesis", the now accepted explanation for the generation of exercise-limiting symptoms in chronic heart failure, but at the time a radical theory.

[15] He has been chairman or a member of the steering committee of many large-scale international drug trials that have influenced treatment of cardiovascular disease.

In 2016, he was the keynote speaker at the International Conference of Undergraduate Research, held concurrently in Australia, the UK, Singapore, Malaysia, Japan, South Africa and the US.

[29][30] In 2017 Stewart Coats was appointed an Officer of the Order of Australia for distinguished service to medical research and tertiary education in the field of cardiology, as an academic and author, and as a mentor and role model for young scientists.