Edward Abbott (9 November 1766 – 31 July 1832) was a soldier, politician, judge-advocate and public servant who served at Parramatta, the Hawkesbury River and Norfolk Island in the colony of New South Wales, now part of present-day Australia. He also served at the settlements of Launceston and Hobart in Van Diemen's Land (now the Australian state of Tasmania), which was part of New South Wales until 1825, when Van Diemen's Land became a self-governing colony.
Abbott was born on 9 November 1766 in Montreal, Quebec, Canada, the son of Lieutenant Edward Abbott, Royal Artillery, and Angelique Trottier Desrivieres. He was commissioned as a lieutenant in 1785 and joined the New South Wales Corps in October 1789 (commonly known in Australia as the "Rum Corps"). He arrived in Sydney in June 1790, and served as an officer on Norfolk Island until 1794.
In that year, he returned to Sydney (then called Port Jackson) and took command of the detachment of soldiers at the settlement at Hawkesbury River. He was promoted to captain in 1795 but had to return to England in 1796 due to illness. He returned to Sydney in 1799 and served in both Sydney and Norfolk Island again. In 1803 he took command of the detachment at the settlement at Parramatta, and the governor appointed him a magistrate. During his command in 1804, he helped quell an "Irish" insurrection, for which Governor Philip King gave him a grant of land.
In 1808, Abbott was transferred to Sydney by Major George Johnston to assist in the opposition to Governor William Bligh. He apparently took no active part in the coup (the "Rum Rebellion") which removed Bligh, but approved of the governor's arrest. Johnston offered the position of deputy judge advocate to Abbott. This position was the senior judicial position in the colony which was held at the time by a non-lawyer, Richard Atkins. Biographer W A Townsley states that Abbott declined the appointment. Historian John Bennett notes that Abbott did take up the offer of the appointment before Charles Grimes took over that office.