Alan Geoffrey Serle AO, FAHA, FASSA (10 March 1922 – 27 April 1998), known as Geoff, was an Australian historian, who is best known for his books on the colony of Victoria; The Golden Age (1963) and The Rush to be Rich (1971) and his biographies of John Monash, John Curtin and Robin Boyd.

His first book appeared in 1957; The Melbourne Scene was a selection of documents relating to Victoria and was edited with James Grant.

[3] John Ritchie's entry in the Australian Dictionary of Biography makes pointed reference to Serle's passion for Australia.

[6] On 12 January 1955 Serle married Jessie Macdonald, an art historian, with whom he had four children: Oenone, Donald, Jamie and Richard.

In John Ritchie's obituary, Serle is described as "incisive and insightful, pragmatic and down-to-earth, left-leaning in his political sympathies without being dogmatic, he was gentle in nature, thoughtful in temperament, egalitarian in outlook, exceptionally hard-working, and a loyal friend.