Sir David Rowat Barclay (27 October 1934 – 10 January 2021) and Sir Frederick Hugh Barclay (born 27 October 1934), commonly referred to as the "Barclay Brothers" or "Barclay Twins", were British billionaires. They were identical twin brothers, and, up until the death of Sir David in 2021, had joint business interests primarily in media, retail and property. The Sunday Times Rich List of 2020 estimated their wealth at £7 billion. They have earned a reputation for avoiding publicity, and are often described as reclusive.