Lieutenant-General Sir Henry King KCB (1776–1839) was a British Army officer and Member of Parliament for County Sligo in Ireland. He was the fourth son of Robert King, 2nd Earl of Kingston (1754–1799). He lived at Grove Lodge at Winkfield Row, near Windsor in Berkshire. He died in 1839 and was buried in the parish church at Winkfield. He had married twice: firstly Mary, the daughter of the Hon. and Very Rev. John Hewitt, dean of Cloyne, with whom he had three sons and four daughters and secondly Catherine, the daughter of Rev. Edward Philipps, and widow of J. Richardson.