Jean Fergusson (born 30 December 1944 in Wakefield, West Riding of Yorkshire) is a British television and theatre actress, who is best known for playing the part of Marina on the British situation comedy Last of the Summer Wine from 1985 until it was discontinued in 2010, and her role as Dorothy in the soap Coronation Street.
In theatre, Fergusson's show She Knows You Know!, in which she portrayed the comedienne Hylda Baker, performed at the Vaudeville Theatre, was nominated for a 1998 Laurence Olivier Theatre Award for Best Entertainment of the 1997 season. and she was part of the cast of the touring play Seven Deadly Sins Four Deadly Sinners. In 2010 she took on the role of Dorothy Hoyle in Coronation Street, having previously played Gary Mallet's mother in 1999. She reappeared in 2011, and was part of a large kidnapping storyline involving her husband Alan, John Stape and Chesney.