Walton Hall is a country house in Walton near Wakefield in  West Yorkshire, England. It was built on the site of a former moated medieval hall in the Palladian style in 1767 on an island in a 26-acre (11 ha) lake. It was the ancestral home of the naturalist and traveller Charles Waterton, who made Walton Hall into the world's first wildfowl and nature reserve. Waterton's son, Edmund, sold the estate.
 The Waterton Collection is in Wakefield Museum.
 Walton Hall is now part of the Waterton Park Hotel. In the 1940s and again in the early 1950s and early 1960s the Hall was a maternity home.
 Walton Hall, and a residence at Cawthorne, were home to the Anglo-Saxon chieftain, Ailric, who is mentioned in the Domesday Book and was the King's Thane for South Yorkshire. When the Normans came to Yorkshire, Ailric was at Walton and was alerted by a man on horseback that they were coming in force. He amassed his retainers and on horseback they ambushed the mounted Norman knights of Ilbert de Laci, who were moving on the road from Tanshelf to Wakefield. The better armoured and armed knights of Ilbert de Laci resisted the attack. For two to three years Ailric maintained a guerrilla war out of his estates in the west of South Yorkshire, until de Laci was forced to come to an accommodation with him, whereby Ailric would communicate with the local people and de Laci would return many of his former estates, including Walton Hall.[citation needed]
 The descendant of this family, Sara le Neville, married Thomas De Burgh, the Steward of the Countess of Brittany, Duchess of Richmond. Walton Hall was one of six manors, including the manors at Silkstone and Cawthorne and the De Burgh manors in North Yorkshire, that she lived at through the year. In 1333, Sir Philip de Burgh was granted a licence to 'crenelate' his manor house at Walton.
 The Waterton family acquired the Cawthorne estates and those at Walton including Walton Hall, with the marriage in 1435 of Constance Asshenhull, the heiress of the De Burgh family, to Richard Waterton.[citation needed]
 In the time of Sir Robert Waterton who served Henry VIII the hall came to the waters edge and was three storeys high. Sir Robert Waterton's father-in-law was Sir Richard Tempest, who was with Henry VIII at the Field of the Cloth of Gold. His father in law was Steward of the King's manor of Wakefield and involved in the Tempest – Saville feud. The only part of the old buildings that remain is the old watergate, which is said to be part of an earlier 14th century structure. At that time it was the only entrance across a drawbridge. The old oak hall referred to by Charles Waterton was on the second storey and was in an L shape.[citation needed]
 The entrance hall at Walton Hall has armorial shields on the walls representing the ancestors of the Waterton family. The Waterton family intermarried with other prominent Yorkshire families of the medieval age, including the Percys, the Barnbys, the Wentworths, the Hildyards and others.
 Walton Hall is a proposed UNESCO World Heritage Site. Sir David Attenborough has stated that "Walton Hall is an extremely important site in the history of nature conservation worldwide.  It is, arguably, the first tract of land anywhere in modern times to be protected, guarded and maintained as a nature reserve."
 There is a sundial located on the island to the rear of Walton Hall. It was made by George Boulby in 1813 and is made out of an ashlar with copper gnomons. It is a multi-faceted sundial made out of a polyhedron. It indicates the time in the following cities around the world: Amsterdam, Basle, Boston, Demerara, Madras, Madrid, Mexico City, Moscow, Beijing, Philadelphia, Rome, and Warsaw.
It was described by Richard Hobson thus:
 53°38′31″N 1°27′04″W﻿ / ﻿53.642°N 1.451°W﻿ / 53.642; -1.451