Henry Hare, 3rd Baron Coleraine, FRS, FSA (10 May 1693 – 1 August 1749) was an English antiquary, peer and politician who sat in the British House of Commons from 1730 to 1734, representing the constituency of Boston.

He was a member of the Republica Letteraria di Arcadia, and a friend of the Marquis Scipio Maffei, who renewed their friendship at Coleraine's country seat, Bruce Castle, Tottenham.

He spoke against the Address on 17 January 1734, and in March against authorizing the King to increase his forces if an emergency occurred during the parliamentary recess.

[2] A copy of Latin alcaics from his pen was printed in the Academiæ Oxoniensis Comitia Philologica in honorem Annæ Pacificæ, 1713, and in the Musæ Anglicanæ, iii.

Basil Kennett, who in 1714 succeeded Thomas Turner in the presidency of Corpus, inscribed to Coleraine an epistolary poem on his predecessor's death.

[2] Coleraine married, 20 January 1718, Anne, eldest daughter of John Hanger, Governor of the Bank of England 1719–1721, grandson of Sir Lewis Roberts, who brought him a dowry of nearly £100,000.

Having had no issue by his wife, Coleraine bequeathed his Tottenham estates to this illegitimate daughter; but she being an alien they escheated to the crown.