Bellingham, Henry (d. 1676), army officer and landowner, was the younger son, of the two sons and one daughter, of Robert Bellingham, attorney in the court of exchequer, and his wife, Margaret, née Whyte, of Clongill, Co. Meath. His elder brother was Sir Daniel Bellingham (qv), and like him Henry was admitted a freeman of Dublin as a goldsmith, in his case in 1652. He served as an army officer in the 1640s, and may have been the Henry Bellingham who signed a predominantly military petition addressed to Charles I by protestants in Ireland in late 1643. He appears as a lieutenant of infantry in the army of Michael Jones (qv) in 1648, though he was later described as having served as a cornet in Colonel John Hewson's cavalry regiment. After leaving military service in 1653, he received a grant of lands in Co. Louth, in lieu of pay, confirmed to him in 1666, and centred on Gernonstown (later Castlebellingham).
He was possibly sheriff of Co. Kildare in 1654 but it was in Co. Louth that he proved a mainstay of local administration from the 1650s. In 1654 and 1657 he served as a revenue commissioner, a member of a commission investigating the organisation of parishes in 1658, a commissioner for the civil survey in the county, a captain of a militia company (1659–62), a poll tax commissioner in 1660 and 1661, a commissioner for setting of lands in 1662, an assessor of hearth money in 1664, high sheriff in 1671, and as one of two men appointed to receive the arms of catholics in 1673. He represented Co. Louth in the Irish convention of 1660 and in parliament (1661–66). He married Lucy, daughter of William Sibthorpe of Dunany, Co. Meath; they had one son, Thomas (qv), who would also serve as MP for Co. Louth, and one daughter, Anne. Henry Bellingham died 5 February 1676 and was buried at Gernonstown.