Henry William George Paget, 3rd Marquess of Anglesey (9 December 1821 – 30 January 1880), styled Lord Paget until 1854 and Earl of Uxbridge between 1854 and 1869, was a British peer and Liberal politician.

Anglesey was the only son of Henry Paget, 2nd Marquess of Anglesey, by his first wife Eleanora, daughter of Colonel John Campbell.

He was appointed as Captain of the Burton-on-Trent Troop of the part-time Staffordshire Yeomanry on 26 March 1839.^[1] The following year he obtained permission for the troop to be renamed the Anglesey Troop.^[2] On 21 May 1841 he purchased a commission in the Grenadier Guards as Ensign & Lieutenant.^[3] He sold his commission and retired on 23 May 1845.^[4]

Anglesey was returned to Parliament as one of two representatives for Staffordshire South in 1854, a seat he held until 1857.^[5] In 1869 he succeeded his father in the marquessate and entered the House of Lords.

On 7 June 1845 in her home parish of Horsham, he married Sophia Eversfield,^[6] born 24 June 1819, the daughter of James Eversfield, of Denne Park, and his wife Mary Crew, daughter of Robert Hawgood Crew.^[7] There were no children from the marriage. He died in Westminster on 30 January 1880, aged 58, and was succeeded by his half-brother, Lord Henry Paget. His widow moved to Fordingbridge and later to Tunbridge Wells, where she died on 7 December 1901.^[8]