Iain Robert Morrison (born 14 December 1962) is a retired rugby union player who made 15 appearances for the Scotland national rugby union team. He played flanker.
He was born in Linlithgow.
He played club rugby for London Scottish.
He played for the Anglo-Scots District in the Scottish Inter-District Championship.
Morrison made his international debut on 16 January 1993 against Ireland at Murrayfield.
His last appearance was against New Zealand in the 1995 Rugby World Cup.