Dr John Archibald Venn, CMG FSA JP (10 November 1883 – 15 March 1958), was a British economist. He was President of Queens' College, Cambridge, from 1932 until his death, Vice-Chancellor of Cambridge University 1941–43, university archivist, and author, with his father, of Alumni Cantabrigienses. His father was logician John Venn (the creator of the Venn diagram).
Venn was educated at Eastbourne College and Trinity College, Cambridge. He took his honors in the History Tripos in 1904-1905. During the First World War he was a lieutenant for three years in the Cambridgeshire Regiment and then served as a statistician in the Food Production Department. He served on the Scientific Council of the International Institute of Agriculture and many other Departmental committees of the Ministry of Agriculture. Venn was elected a Fellow in 1927 and had been a Junior Fellow and Bursar at Queens' before being elected President on the death of Thomas Cecil Fitzpatrick in 1932. At the time he was the youngest Head of a College in Cambridge. He was also the Gilbey Lecturer in Agriculture.