John George Adami (; 12 January 1862 – 29 August 1926) was an English pathologist.
He was the head of the pathological department of the Royal Victoria Hospital.
From 1892, he was professor of pathology in McGill University, Montreal, Canada.
During World War I, he was accorded a temporary commission in the Canadian Army Medical Corps to serve as the official historian for the medical branch.
Starting in 1919, he became the Vice-Chancellor of the University of Liverpool.
He was elected a Fellow of the Royal Society of Edinburgh in 1898 and a Fellow of the Royal Society on 11 May 1905.