Sir Andrew Searle Hart (1811–1890) was an Anglo-Irish mathematician and Vice-Provost of Trinity College Dublin (TCD).

George Vaughan Hart of Glenalla, County Donegal, and his wife Maria Murray, daughter of the Very Rev.

His grandfather, Lieutenant John Hart, a younger son of the family, was killed in action at the Battle of the Monongahela.

Another relation, Sir Eustace Hart, married Lady Mary de Vere, a daughter of John de Vere, 16th Earl of Oxford and a sister of the 17th Earl of Oxford,[1] who is a proposed alternative to the authorship of the works by William Shakespeare.

Sir Andrew's first cousin once removed was James Deacon Hume, the 18th-century economist and civil servant.

[3][4][5] He was educated at Foyle College and by a private tutor before entering TCD in 1828, where he became the class-fellow and intimate friend of Isaac Butt, with whom he always preserved a warm friendship although they differed in politics.

Hart also served as Professor of Real and Personal Property in King's Inns, Dublin.

[7] Hart's most important contribution was contained in his paper Extension of Terquem's theorem respecting the circle which bisects three sides of a triangle (1861).

[6] In February 1873, Hart made up part of the delegation sent to London on behalf of TCD to lobby members of parliament to vote against the Irish University Bill[7] He was elected Vice-Provost of TCD in 1876,[6] and at this time undertook many of the duties of the then provost, Humphrey Lloyd, that ill health had permitted him from carrying out.

[6] The youngest son, William Hume Hart (1852-1887) predeceased Sir Andrew.

On 25 January 1886, he was knighted at Dublin Castle by the lord-lieutenant, Lord Carnarvon, "in recognition of his academic rank and attainments.