Cresswell is the surname of a family that started out Muggle. Around 1961, however, a wizard, Dirk Cresswell, was born into the family. In 1998, Dirk was killed by Snatchers, leaving behind a wife and at least two sons.
- Dirk Cresswell — a Muggle-born wizard and the head of the Goblin Liaison Office; killed by Snatchers in 1998
- Mrs. Cresswell — wife of Dirk
- Cresswell brothers — sons of Dirk
Cresswell means "stream where watercress grows," from the Old English caerse, "watercress," and well, "stream" or "spring." It is the name of several vilages in England (as is the alternate spelling Creswell).