Raymond Reginald "Mick" Cossey (21 January 1935 – 24 May 1986) was a New Zealand rugby union player.
A second five-eighth and centre, Cossey represented Auckland, Poverty Bay, and Counties at a provincial level.
He played just one match for the New Zealand national side, the All Blacks: the first test against the touring Australian side in 1958.A schoolteacher, Cossey taught at Patutahi School, near Gisborne, in the mid-1950s, where one of his students was future All Black Ian Kirkpatrick.
Cossey was killed in an accident at a railway crossing in 1986, and his ashes were buried in Papakura Cemetery.