Maas appearing on Antiques Roadshow in 2010
|Born||Rupert Nicholas Maas|
23 July 1960
|Alma mater||University of Essex|
|Occupation||Art gallery owner, painting specialist on Antiques Roadshow|
|Height||6 ft 6 in (1.98m)|
|Spouse(s)||Tamar Seaborn |
Rupert Nicholas Maas (born 23 July 1960) is an English painting specialist and gallery owner best known for his appearances on the long-running series Antiques Roadshow where he has been a member of the team of experts since 1997.
Born and raised in London, Rupert is the son of Jeremy Maas and Antonia Armstrong Willis. Rupert's parents had married in 1956. Rupert has an older sister Athena (born 1957) and a younger brother Jonathan (born 1962). 
Rupert's father started the Maas Gallery in Mayfair, London, dealing in Pre-Raphaelite paintings, writing a book in 1969, Victorian Painters. Rupert Maas was educated at Sherborne School in Dorset from 1974 to 1978 and took a BA in Art History at the University of Essex from 1980 to 1983.
In the summer of 1983, he sailed the Atlantic and later that year joined the Maas Gallery which deals in Victorian, Pre-Raphaelite, Romantic and Modern British paintings, watercolours, drawings, reproductive engravings and sculpture. The gallery has also featured the work of a number of contemporary living artists, including Keiron Leach and Julia Sorrell.
Maas served on the executive committee of the Society of London Art Dealers in 1998–99. He co-owns and runs The Watercolours and Drawings Fair. He has regularly written articles for the art, press and lectures on art. He is widely recognised as the leading expert on the works of the Royal Academician Augustus Leopold Egg (1816–1863). He also promotes Ballantine's whisky in the Far East.
Maas is frequently called upon to provide independent valuations for museums, both domestic and international, and has previously valued individual pictures and entire collections (for example the John Wharlton Bunney 1828-1882 archive) for Acceptance in Lieu. In 2006 Maas was duped into paying £20,000 for a faked art work claimed to be by fairyland painter John Anster Fitzgerald (1823–1906).
In 1993, Maas became full-time director of the Maas Gallery. In 1997, shortly after his father's death, he joined BBC's Antiques Roadshow as a picture specialist. He has appeared regularly on the series and on other television programmes such as Castle in the Country. In late 2008 he caused a minor local controversy when he implied, in an episode of Antiques Roadshow, that women from Shropshire had fat ankles.
Known for his ability to reel off spontaneous art-related witticisms, one of his best known and oft-quoted quips pertains to vetting an artwork's authenticity by bearing in mind that "Everything but the naked picture is capable of lying."
- "Maas, Rupert Nicholas, (born 23 July 1960), Managing Director, Maas Gallery, since 1993 - WHO'S WHO & WHO WAS WHO". doi:10.1093/ww/9780199540884.001.0001/ww-9780199540884-e-257995. Retrieved 28 June 2018.
- "Obituary: Jeremy Maas". Retrieved 28 June 2018.
- "The pre-Raphaelites: behind the scenes at a modern blockbuster". The Observer. 19 August 2012. Retrieved 31 May 2015.
- "About us". Maasgallery.co.uk. Retrieved 2014-05-25.
- "Untrained painter conned art world with fakes". Retrieved 28 June 2018.
- "WI fights back over 'fat ankle' jibe". The Independent. 30 November 2008. Retrieved 31 May 2015.
- "It's official - county ankles are super!", Shropshire Star, 3 December 2008
- "University Challenge - Christmas 2015: 4. Christ's, Cambridge v Essex". Retrieved 1 December 2017 – via www.bbc.co.uk.