Thomas Beaumont, 1st Viscount Beaumont of Swords (c. 1582 – 8 February 1625) was an English politician who sat in the House of Commons between 1604 and 1611.
Beaumont was the son of Sir Henry Beaumont of Cole Orton, Leicestershire and his wife Elizabeth Lewis, daughter of John Lewis of London.
He was educated at Peterhouse, Cambridge (c. 1596) and studied law at the Inner Temple in 1610.
He was knighted at Belvoir Castle on 23 April 1603.
Beaumont died as the result of his injuries in a duel.