Iain B. MacDonald is a British television director.
He is the director of BBC THREE comedy series White Van Man.
He worked on a number of episode of the BBC series Doctors, moving onto direct several episodes of another medical drama, Bodies. He won an Edinburgh International Film Festival award in 2004 for Billy's Day Out.
More recently, he directed three episodes in the first series of Hotel Babylon and the 2007 ITV dramatisation of Mansfield Park, followed by the 2008 BBC series The Last Enemy.