Frank Reeson Welsh (16 August 1931 – 23 April 2023) was a British historian, novelist and international banker.^[1]

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Welsh was born on 16 August 1931.^[2] He graduated from Magdalene College, Cambridge, and retired after a successful banking career. He wrote extensively on imperial British history, notably Hong Kong, Australia and South Africa.

Welsh died on 23 April 2023, at the age of 91.^[3]

• The History of the World: from the Dawn of Humanity to the modern age., London: Quercus, 2013.
• The Battle for Christendom: The Council of Constance, 1415, and the Struggle to Unite Against Islam, London: Constable, 2008.
• Great Southern Land: A New History of Australia, London : Allen Lane, 2004.
• The Four Nations: A History of the United Kingdom, London: HarperCollins, 2002.
• Dangerous Deceits: The Secrets of Apartheid's Corrupt Bankers, London : HarperCollins, 1999.
• South Africa: A Narrative History, New York: Kodansha America, 1999.
• A History of South Africa, London : HarperCollins, 1998.
• The Companion Guide to the Lake District, London: Companion Guides, 1997.
• A Borrowed Place: The History of Hong Kong, New York: Kodansha America, 1993.
• A History of Hong Kong, London: HarperCollins, 1993.
• Building a Trireme, London: Constable, 1988. - on the construction of the Olympias
• Uneasy City: An Insider's View of the City of London, London: Weidenfeld & Nicolson, 1986.
• Bend'Or, Duke of Westminster : A Personal Memoir, London: Robin Clark, 1985; with a foreword by Anne Grosvenor, Duchess of Westminster, authored with George Ridley.
• First blood: Tales of Horror from the Border Country, London : Constable, 1985.
• The Afflicted State: A Survey of Public Enterprise, London: Century Pub., 1983.
• The Profit of the State: Nationalised Industries and Public Enterprises, London: Temple Smith, 1982.