Codey Spencer Rei (born 2 February 1989) is a New Zealand rugby union player. He plays in the wing, fly-half and fullback position and is considered a utility back.
In June 2016 it was announced Rei had signed for Kobe Kobelco Steelers on a two-year contract.
Rei has captained the Chiefs development side.
He has played for ITM Cup side Taranaki as well as for North Harbour.
Rei has also been capped for New Zealand's māori international side the Māori All Blacks.
Rei and his partner have a son, Reggie.