John Foster of Dunleer (born 1665-died 16 May 1747) was elected member to the Irish House of Commons for the constituency of Dunleer, in County Louth.
He was the son of Colonel Anthony Foster of Dunleer, whose father Samuel had come to Ireland from Cumberland.
He held the position of Mayor of Dunleer Corporation.
He married in 1704 Elizabeth Fortescue, youngest daughter of William Fortescue of Newrath, County Louth, and first cousin to William Henry Fortescue, 1st Earl of Clermont.
This article about a Member of the Parliament of Ireland (up to 1800) is a stub.