James Barr (physician)

James Barr (1849 – 1938) was a British physician known for his contributions to cardiology and public health. He graduated from the University of Liverpool and practiced medicine in the city for much of his career.

Barr was a strong advocate for preventive medicine and believed in the importance of addressing social determinants of health. He was particularly interested in the prevention and treatment of heart disease, publishing extensively on topics such as blood pressure, cardiac arrhythmias, and the effects of exercise on the heart. He developed a "pneumo-dynamometer" for assessing respiratory strength.

Barr held positions at the Liverpool Royal Infirmary and the David Lewis Northern Hospital. He served as President of the British Medical Association in 1922. His writings and lectures reflected his commitment to clinical observation and practical application of medical knowledge. He was known for his sometimes outspoken views and his dedication to improving the health and wellbeing of the working classes in Liverpool.