Edwin Richard Wyndham-Quin, 3rd Earl of Dunraven and Mount-Earl, KP, PC, FRAI, FSA, FRGS, FRS (19 May 1812 – 6 October 1871), styled Viscount Adare from 1824 to 1850, was an Irish peer, Conservative Member of Parliament, and archaeologist.

While in the House of Commons he became a Roman Catholic and his political activity largely aimed at safeguarding religious education in Ireland.

In 1850, he succeeded his father as Earl of Dunraven and Mount-Earl in the peerage of Ireland and retired from the House of Commons the next year.

For three years he studied astronomy under William Rowan Hamilton in the Dublin observatory, and acquired a thorough knowledge both of the practical and theoretical sides of the science.

His son, later, the fourth earl, prepared for him minute reports of séances which Daniel Dunglas Home conducted with his aid in 1867–8.

In 1862 he accompanied Montalembert[11] on a tour in Scotland, and five years later travelled in France and Italy, with the view of making a special study of campaniles.

He spent four years travelling and working on this; two lengthy folios were published after his death, under the editorship of Margaret Stokes, with a preface by the fourth Earl of Dunraven, and notes by Petrie and Reeves.

The work was illustrated by 161 wood engravings, from drawings by G. Petrie, W. F. Wakeman, Gordon Hills, Margaret Stokes, Lord Dunraven, and others, besides 125 fine plates.

He was a man of quick perceptions and great power of application, a zealous Roman Catholic, and a highly popular landlord.

[citation needed] The surviving issue of this marriage were: Secondly, 27 January 1870, to Anne, daughter of Henry Lambert, esq., of Carnagh, Wexford,[14] who, after his death, married Hedworth Jolliffe, 2nd Baron Hylton.

[5][9] In 1855, Dunraven purchased "Garinish Island" near Sneem (County Kerry, Republic of Ireland) as a holiday retreat from the Bland family of Derryquin Castle.