Lamont made a memorable try scoring debut for Scotland in the 2005 Six Nations Championship match against Wales at Murrayfield. He also played recently for Scotland As against Australia A in the experimental position of inside centre at national coach Frank Hadden request.
He played in the 2007 Rugby World Cup at full back, arguably being Scotland's best back in the tournament. He also played for Northampton Old Scouts RFC after having left Northampton Saints. He is yet another international to have played for the Scouts that includes Ben Cohen, Steve Thompson amongst others.
Rory is the younger brother of Sean Lamont.
While playing Rugby on the 8th of March 2008, Scotland v England (15 - 9), Rory Lamont sustained a facial fracture.