Mary Reibey née Haydock (12 May 1777 – 30 May 1855) was an English-born merchant, shipowner and trader who was transported to Australia as a convict.

After gaining her freedom, she was viewed by her contemporaries as a community role model and became legendary as a successful businesswoman in the colony.

Thomas Reibey's business undertakings prospered, enabling him in 1804 to build a substantial stone residence on a further grant of land near Macquarie Place.

He entered into a partnership with Edward Wills, and trading activities were extended to the Bass Strait, the Pacific Islands and, from 1809 to China and India.

[2] When Thomas Reibey died on 5 April 1811, Mary assumed sole responsibility for the care of seven children and the control of numerous business enterprises.

Reibey built a cottage in the suburb of Hunters Hill, New South Wales, circa 1836, where she lived for some time.

Meg Keneally's novel The Wreck (2020 Zaffre, ISBN 978-1838771393) features a character, Mrs Molly Thistle, based loosely on Mary Reibey.

[15] She also inspired the TV musical Pardon Miss Westcott (1959) and her life was dramatised in the radio plays Fulfilment (1948) by Rex Rienits and Mary Reibey by Dymphna Cusack.