Malcolm George Mackay (born 19 February 1972) is a Scottish professional football manager and former player, who is currently the performance director of the Scottish Football Association. Mackay, who played as a defender, began his playing career in Scottish football, with Queen's Park and Celtic.
He joined English side Norwich City in 1998, remaining there for six years. Between 2004 and 2006, he achieved consecutive promotions to the Premier League with Norwich, West Ham United and finally Watford. Mackay won five caps for Scotland towards the end of his playing career.
After retiring as a player in 2008, he became manager of Watford in June 2009. He was manager of Cardiff City between June 2011 and December 2013, achieving promotion to the Premier League in 2013 but was dismissed after a dispute with club owner Vincent Tan. Mackay was appointed manager of Wigan in November 2014. Following a poor run of results he was dismissed by Wigan in April 2015.