Frederick Dean (1 September 1880 – 1 September 1946) was a Cornish rugby union player who competed in the 1908 Summer Olympics at White City Stadium, London.
He also played for Plymouth Albion R.F.C..
He was a member of the British rugby union team, which on 26 October 1908 won the Olympic silver medal for Great Britain.
He was born in Plymouth and died in Devonport, Devon.