Nigel Hamilton (born 16 February 1944) is a British-born biographer, academic, and broadcaster, whose works have been translated into sixteen languages.

In the United States, he is known primarily for his best-selling[1] work on the young John F. Kennedy, JFK: Reckless Youth, which was made into an ABC miniseries.

Hamilton was born in Alnmouth, Northumberland, but spent his early life in London, where his father, Lt-Colonel Sir Denis Hamilton, a distinguished World War II battalion commander in the Duke of Wellington's Regiment, became a pioneering editor of The Sunday Times, chairman and editor-in-chief of The Times, chairman of Reuters, and trustee of the British Museum and British Library.

[2] Hamilton was educated at Westminster School with his twin brother Adrian, who later became a prominent British journalist for the London Observer, Times and Independent.

"[7] It became a New York Times bestseller and film rights were sold to Hearst Entertainment,[8] who turned it into a television mini-series, JFK: Reckless Youth, which starred Patrick Dempsey as the young Kennedy.

[13] Hamilton again returned to the United States to undertake a two-volume biographical work on the life of former president, Bill Clinton.

[18] Hamilton followed with a modern version of the classic history of the great emperors of Rome, The Twelve Caesars, written early in the second century A.D. by the biographer and historian Suetonius.

Hamilton was married to Hannelore Pfeifer, a doctoral student of German literature at Munich University, and had two children, Alexander and Sebastian.