Lt Col John Du Plessis Langrishe FRSE DSO (1883-1947) was a British physician, soldier and landowner. As a trained physician he was a specialist in public health.
He was born on 11 September 1883 the son of Richard Langrishe (1834-1922) and his wife Amitia (“Amelia”) Sneade Brown. He was the great great grandson of Baronet Hercules Langrishe. He studied Medicine at the University of Dublin and graduated MA MB ChB around 1905.
In the First World War he served with distinction in the Royal Army Medical Corps, winning the Distinguished Service Order in 1918. After the war he remained in the RAMC but lectured in Tropical Hygiene and Public Health at Edinburgh University and served as Chairman of the Edinburgh University Joint recruiting Board. In 1931 he was elected a Fellow of the Royal Society of Edinburgh. His proposers were Francis Albert Eley Crew, James Hartley Ashworth, Percy Samuel Lelean and Thomas Jones Mackie.
He died on 28 February 1947.
In 1914, at the outbreak of the war, he married Helen Dorothy Collins. They had three children, Philip John Duppa Langrishe, Dorothy Pratt Langrishe and Hugh Richard Langrishe.