Peregrine Hyde Osborne, 3rd Duke of Leeds (11 November 1691 – 9 May 1731)[1] was a British peer.

On 17 September 1719, he married secondly to Lady Anne Seymour, third daughter of Charles Seymour, 6th Duke of Somerset by his first wife, Lady Elizabeth Thynne, styled Baroness Percy (only child of Josceline Percy, 11th Earl of Northumberland).

[4] After her death in 1722, he married finally, on 9 April 1725 at St Anne's Church, Soho,[1] Juliana Hele, a daughter and co-heiress of Roger Hele of Holwell in the parish of Newton Ferrers, Devon.

[6] The Duke of Leeds died, aged 40, and was buried in the Osborne family chapel at All Hallows Church, Harthill, South Yorkshire.

He was succeeded in his titles by his only surviving child, Thomas, Marquess of Carmarthen, born by his first wife.