Nashdom, also known as Nashdom Abbey, is a former country house and former Anglican Benedictine abbey in Burnham, Buckinghamshire, England. Designed in Neo-Georgian style by architect Edwin Lutyens, it is a Grade II* listed building. It was converted into apartments in 1997. The gardens are Grade II listed in the National Register of Historic Parks and Gardens.
The name Nashdom is romanised Russian (Russian: Наш дом; IPA: [naʂ dom]), meaning "our home". Lutyens' clients were Prince and Princess Dolgorouki. Prince Alexis, a son of Prince Serge Dolgorouki, was formerly the chamberlain in the Russian court. In 1898 he married Frances, the only daughter and heiress of the Scottish shipping magnate Fleetwood Pellew Wilson, of Wappenham Manor, Northamptonshire. The couple's British residences included Braemar Castle, Aberdeenshire, and a house in Upper Grosvenor Street, London.
The Princess wanted an additional residence, for royal guests and house parties. Lutyens visited the site in July 1905, thinking it beautiful but a very difficult one for the Princess's ideal house, which he thought would cost £20,000. Her initial budget was only £6,000, and they finally agreed on a design costing £15,000. Sources differ on the house's completion date, ranging from 1908, to 1911.
The Prince died, aged 68, in June 1915. Thereafter, the Princess lived in Pyrénées-Atlantiques, France, where she died in August 1919, aged 69. In her will, she left Nashdom for the use of the Dolgorouki family, under the stewardship of Serge Alexandrovitch Dolgorouki, aided by her executor, Herbert Brisbane Ewart.