Thomas Fortescue

• Thomas Fortescue (Wallingford MP), English MP for Wallingford (UK Parliament constituency)
• Thomas Fortescue (1683–1769), Irish politician, MP for Dundalk 1727–60
• Thomas Fortescue, 1st Baron Clermont, Irish Whig politician
• Thomas Fortescue (1744–1799), MP for Trim in the Irish House of Commons 1768–99
• Thomas Fortescue (secretary), Anglo-Indian civilian and secretary