| Dirk Wittenborn | |
| Birth Name: | Christopher Dirk Wittenborn |
| Birth Date: | 5 November 1951 |
| Birth Place: | New Haven, Connecticut, U.S. |
| Occupation: | Screenwriter and novelist |
| Period: | 1980–present |
| Alma Mater: | University of Pennsylvania |
| Notableworks: | Pharmakon (2008) Fierce People (2002) |
| Spouse: | Kirsten Wittenborn |
| Children: | Lilo Wittenborn |
Dirk Wittenborn (born November 5, 1951) is an American screenwriter and novelist.
He graduated from the University of Pennsylvania and started writing in the early 1980s while working at Saturday Night Live.