Charles Howard, 3rd Earl of Carlisle (c.1669 – 1 May 1738) was a British statesman and member of the peerage of England.
Charles Howard was the eldest son of Edward Howard, 2nd Earl of Carlisle, and inherited his title on the death of his father in 1692. He married in 1683 Lady Anne de Vere Capell, daughter of Arthur Capell, 1st Earl of Essex.
He was elected as MP for Morpeth in 1689. He was appointed Governor of Carlisle from 1693 to 1728 and Lord-Lieutenant of Cumberland and of Westmorland from 1694-1714. William III made him a Gentleman of the Bedchamber between 1700 and 1702, First Lord of the Treasury from 1701 to 1702 and Privy Counsellor in 1701. He acted as Earl Marshal between 1701 and 1706 because his cousin, the Duke of Norfolk, was a minor. On Queen Anne's death on 1 August 1714 he was appointed Lord Justice of the Realm until the arrival of King George I on 18 September 1714.. The new king reappointed him as First Lord of the Treasury from 23 May 1715 to 10 October 1715 and made him Constable of the Tower of London between 1715 and 1722.
In 1699 he commissioned a new Baroque mansion, Castle Howard, in Yorkshire, England to the design of Sir John Vanbrugh which is still occupied by his descendants.
He died in Bath in 1738 and is buried in the mausoleum at Castle Howard.