Surname Cuylen (Cuylen 
) , worldwide, is a rare cognomen. The cognomen Cuylen is habitual in Belgium, where it is a rare surname, Germany, where it is a very rare surname, and the United States, where it is an extremely rare surname. Much less frequently, Cuylen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cuylen | Germany, South Africa, Belgium, United States |
| pieter van de cuylen German painter (1909-1990), DE (b. 1909) |
|