Dyck is a surname, and may refer to
- Anthony van Dyck
- Carrie Van Dyck
- Cornelius Van Allen Van Dyck
- Howard Dyck
- Lillian Dyck
- Peter George Dyck
- Rand Dyck
- Walther von Dyck
- A misspelling for the movie Dick since the movie's box art title and logo on the trailer have the hands of a person pointed out to shape like a "Y".
