Gregg Allan Wallace (born 17 October 1964) is an English television presenter known for co-presenting MasterChef, Celebrity MasterChef and MasterChef: The Professionals on BBC One and BBC Two. He is also a writer, media personality and former baker, costermonger and farmer. He has jokingly referred to himself as "just the fat, bald bloke on MasterChef who likes pudding".
Wallace was born in Elephant and Castle, London. He began his career selling vegetables at a stand in Covent Garden. In 1989, he started George Allan’s Greengrocers, a company that built up to an eventual turnover of £7.5 million. Based on his business success, Wallace was invited to co-present Veg Talk on BBC Radio 4 with Charlie Hicks for seven years.
In 2010, Wallace opened the restaurant Wallace & Co in Putney where he served as one of the directors. In 2012, he opened Gregg's Bar & Grill in a joint venture with the Bermondsey Square Hotel in Bermondsey Square.