Henry John Reynolds-Moreton, 3rd Earl of Ducie GCVO PC JP FRS (25 June 1827 – 28 October 1921), styled Lord Moreton between 1840 and 1853, was a British courtier and Liberal Party politician.

He notably served as Captain of the Yeomen of the Guard from 1859 to 1866, and Lord Warden of the Stannaries from 1888 to 1908.

[8] The earl was appointed Honorary Colonel of the 1st Administrative Battalion, Gloucestershire Rifle Volunteer Corps on 16 June 1868 and held the position for 40 years.

In 1872, a short article by the third earl entitled Crocodile shooting was published in Land and Water.

[13] Knightley William Horlock, who sometimes wrote under the pen name, "Scurator", dedicated his book Letters on the Management of Hounds, a treatise on venery, to the Earl, who was his Patron.