Peter Duncan (born 3rd May, 1954) is a British actor and television presenter best known for his two stints as a presenter on the BBC children's show Blue Peter, from 1980 to 1984, and again from 1985 to 1986. On Coronation Street, he played Christopher Cullen in January 1974.

Peter's other acting credits include The Tomorrow People, Survivors and the 1980 film Flash Gordon.