Denis Hugh Vercingetorix Brogan (20 March 1936 – 26 July 2019)^[1] known as Hugh Brogan, was a British historian and biographer.

The son of Sir Denis Brogan and Olwen Phillis Francis (Lady Brogan), OBE, archaeologist and authority on Roman Libya, he was educated at St Faith's School,^[2] Cambridge, Repton School, and St John's College, Cambridge, graduating BA in 1959 and MA in 1964.^[3] From his schooldays, he was a frequent correspondent of J.R.R. Tolkien regarding the latter's works. The Letters of J. R. R. Tolkien published in 1981 includes five addressed to Brogan; these are dated 7 April 1948, Christmas 1948, 18 September 1954, 11 September 1955, and 14 December 1955. A draft of an unsent letter addressed to Brogan is also included.^[4]

Brogan was on the staff of The Economist from 1960 to 1963, and was elected a Harkness Fellow in 1962, then was a fellow of St John's College, Cambridge, from 1963 to 1974.^[3] He was then part of the department of history at the University of Essex from 1974 to 1998, first as a lecturer, then a reader, and finally as Professor of History from 1992 to 1998.^[3]

• Tocqueville (1973)
• The Times Reports The American Civil War (1975)
• The Life of Arthur Ransome (1984)
• The Longman History of the United States of America (1985, reprinted as The Penguin History of the United States of America, 1990)
• Mowgli's Sons: Kipling and Baden-Powell's Scouts (1987)
• Correspondance et Conversations d'Alexis de Tocqueville et Nassau William Senior, (1991, with Anne P. Kerr)
• American Presidential Families [with Charles Mosley] (1993)
• Kennedy (1996)
• Signalling from Mars: the letters of Arthur Ransome (1997, ed.)