Henry Folliott, 1st Baron Folliott (1568 – 10 November 1622) was the second son of Thomas Folliott of Pirton Court, Pirton, Worcestershire.
From about 1594 he served the Crown in Ireland and in 1603 was commissioned to develop a township adjacent to Ballyshannon Castle. In 1608 he commanded troops in the suppression of O'Doherty's Rebellion and successfully captured or killed some of the rebels during the Siege of Tory Island. The Borough of Ballyshannon was incorporated in 1613. He was created Baron Folliott, of Ballyshannon, in the Peerage of Ireland on 22 January 1620.
He acquired salmon fisheries and over 3,000 acres (12 km2) of land in Co. Donegal. His residence was Wardtown Castle, Ballymacaward, Co. Donegal.
He married Anne Strode, daughter of Sir William Strode of Stoke-under-Hampden, Somerset and had seven children:
His widow married secondly Robert Dillon, 2nd Earl of Roscommon, by whom she had further issue; she died c.1650.