Sir John Coghill, 1st Baronet (died 1785), also known as John Mayne, was a British Army officer and Tory politician.[1]
Born John Mayne, he assumed the surname of Coghill upon his marriage to Hester Coghill, an heiress and daughter of James Coghill and niece of Marmaduke Coghill.[1]
He was a cornet in the 14th Regiment of Dragoons in 1734, a captain in 1754 and a major 1766. His name had disappeared from the Army lists by 1771.[2] Between 1780 and his death he represented Newport in the House of Commons.[1] He was elected unopposed on the interest of the Duke of Northumberland. In May 1784 he was classed as a Pittite. There is no record of his having spoken in the House of Commons.[2]
He was created a baronet, of Richings in the Baronetage of Great Britain on 24 March 1781.[3] He died without issue at which point the title became extinct.[1]