Geoffrey Eagar (17 December 1818 – 12 September 1891) was an accountant and colonial politician and civil servant in New South Wales, Australia.

Eagar was born in Sydney, son of Jemima née McDuel and Edward, a lawyer, emancipated convict and merchant.

[1] Edward left Australia in 1821, while Geoffrey was still an infant, to take a legal battle over the rights of freed convicts to London, and did not return.

His mother Jemima them moved into a house on Macquarie Street provided for by William Wentworth, by whom she gave birth to a son.

[11] Eagar died at his home in the Sydney suburb of Glebe Point, survived by his wife and three of their four children, Arthur, a bank manager, Ernest a civil servant and a daughter.