Around the world, Drennen (Drennen 
) is a very rare dominantly boy's, but infrequently feminine first name. The forename Drennen is characteristic of Northern America, particularly the United States, where it is a very rare largely male, but seldom female name. Much more prevalently, Drennen is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Drennen | Australia, South Africa, Canada, United States, United Kingdom |