Hubert Raymond Allen, DFC (19 March 1919 – 31 May 1987) was a Royal Air Force (RAF) officer and commentator on defence matters. He fought during the Battle of Britain and was a flying ace of the Second World War, scoring 8 victories. Following his retirement from the RAF as a wing commander in 1965, Allen wrote several controversial books and articles on air power. He criticised RAF Air Staff policies before and during the Second World War. In contrast to the conventional narrative account, he maintained that during the Battle of Britain naval rather than air power was the crucial factor. His opinions clashed with mainstream opinion of the RAF's role, and with the views of many air historians, but his viewpoint received some support and significant attention.