Winchcombe Howard Packer (20 November 1702 – 1746), of Donnington and Shellingford, Berkshire, was a British Tory politician who sat in the House of Commons from 1731 to 1746.
In 1718 he succeeded to the Bucklebury estate of his aunt Frances, Viscountess Bolingbroke daughter of Sir Henry Winchcombe.
She was the wife of Henry St John, 1st Viscount Bolingbroke who went into exile after supporting the Pretender in the 1715 Jacobite rebellion.
[1] Packer was returned unopposed as a Tory Member of Parliament for Berkshire at a by-election 5 May 1731 in succession to his father.
In 1738 he obtained an Act of Parliament by which he was able to sell his estate at Shellingford to Sarah Churchill, Duchess of Marlborough, who had the support for the bill from her grandson, John Spencer, who eventually came into the property.