| Viscountcy of Astor | |
| Creation Date: | 28 June 1917 |
| Peerage: | Peerage of the United Kingdom |
| First Holder: | William Waldorf Astor, 1st Baron Astor |
| Present Holder: | William Astor, 4th Viscount Astor |
| Heir Apparent: | The Hon. William Astor |
| Remainder To: | Heirs male of the first viscount's body, lawfully begotten |
| Subsidiary Titles: | Baron Astor |
| Family Seat: | Ginge Manor |
| Former Seat: | Hever Castle Cliveden |
| Motto: | Ad Astra ("To the stars")[1] |
Viscount Astor, of Hever Castle in the County of Kent, is a title in the Peerage of the United Kingdom. It was created in 1917 for the financier and statesman William Waldorf Astor, 1st Baron Astor. He had already been created Baron Astor, of Hever Castle in the County of Kent, in 1916, also in the Peerage of the United Kingdom.[2]
His eldest son Waldorf, the second Viscount, was the husband of Nancy Astor, Viscountess Astor, the first woman to sit in the House of Commons., the titles are held by their grandson, the fourth Viscount, who succeeded his father in 1966. He is one of the ninety-two elected hereditary peers that remain in the House of Lords after the passing of the House of Lords Act 1999, and sits as a Conservative.
John Jacob Astor, 1st Baron Astor of Hever, was the third son of the first Viscount. This peerage, Baron Astor of Hever, was a separate creation in 1956 and not to be confused with the Viscount's subsidiary title of Baron Astor, of Hever Castle in the County of Kent. The Hon. David Astor CH, the Hon. Michael Astor and the Hon. Sir Jakie Astor, younger sons of the second Viscount, all gained prominence in public life.
The family seat is Ginge Manor, near Wantage, Oxfordshire.
The first three Viscounts Astor are buried within the Astor family chapel (also known as the Octagon Temple) at the Cliveden estate near Taplow, Buckinghamshire.[3]
The heir apparent is the present holder's eldest son, the Hon. William Waldorf Astor (born 1979).
The heir apparent's heir apparent is his son, William Waldorf Astor (born 2012).