Reginald Charles Allen (born July 2, 1858 in Sydney; died May 2 1952 in Sydney) was an Australian cricketer who played in one Test match against England in 1886-87.
Allen also played for New South Wales and was top scorer in the first innings of the state match against the England team – under the name "A. Shaw's XI" – that immediately preceded the second Test.
He was the uncle of the England Test captain Gubby Allen, who was born in Australia.