Graham Charles Lay (Willesden, Greater London, UK, 19 January 1960 – 27 November 2016) was a British antiques expert specialising in arms, armour and militaria, and military history, probably best known for his many appearances on BBC TVs Antiques Roadshow television programme, where he had been one of the team of experts since 1988.
He was regularly seen wearing a 'Blue Peter' badge.
He appeared as an expert on other BBC TV antiques programmes such as 20th Century Roadshow, Priceless Antiques Roadshow and Bargain Hunt.
In Series 1, episode 6 of 20th Century Roadshow, recorded at Imperial War Museum Duxford, he valued a World War II Spitfire MkIX aircraft at between £1,000,000 and £1,500,000: the highest price for anything ever valued on the show.