In all the world, Garthoff (Garthoff 
) is an extremely rare unknown gender first name. Much more prevalently, Garthoff is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Garthoff | Germany, China, South Africa, United States, Netherlands |
Mr, Shane, S M A, Cesar, Claas, Craig, Brian, Karen, Kathy, Paula, Peter, Ricky, David, Larry, Loren, James, Jared, Jerry, Jhair, Niels, Ellen, Edith, Mario, Heinz, Maria, Tina, Ms, Kim, Jay, Tim, Mary, Matt, Sean, Sven, Anja, Kurt, Kris, Rose, Rolf, Ruth, Ryan, Dave, Dirk, Leon, Lori, Jeff, Tara, Fred, and Horst