Ronald Arthur Biggs, born 8 August 1929 in London's East End (known commonly as Ronnie Biggs), is a British prisoner who is known for his minor role in the Great Train Robbery of 1963.

He and others stole £2.6 million from a mail train. After he was convicted he escaped from HM Prison Wandsworth in 1965 by scaling the wall with a rope ladder, got papers and a new face in Paris, and fled in 1970 to Adelaide, South Australia. He worked in Set Construction at Channel 10 when a reporter recognised him. He then fled toBlackburn North, in Melbourne, Australia, staying for some time before fleeing to Brazil in the same year. He allegedly had only £200 left when he arrived in Brazil. His wife, Charmian, and two sons stayed behind in Australia. He spent the next three decades of his life as a fugitive and became somewhat of a media celebrity. Despite being a rather minor figure in the actual robbery he could be argued to have gained the most actual profit from it.