Maxwell Frank Clifford is an English publicist. Although his client range is varied, he is a controversial figure for often representing unpopular clients and acting as an agent to people selling "kiss-and-tell" stories to tabloid newspapers.

A traditional Labour supporter, Clifford openly vowed to bring down the government of John Major because he personally felt, due to family reasons , that the National Health Service was mismanaged. While he is primarily known for helping to bring damaging allegations to light, he insists that today most of his work is concerned with concealment of stories.