Around the world, Klaesner (Klaesner 
) is an extremely rare unknown gender forename. Much more prevalently, Klaesner is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Klaesner | Germany, Brazil, United States |
Ms, Dennis, Daniel, Glesio, Lisane, Joseph, Ernest, Wesley, Michael, Shirley, Kaitlyn, Dolores, Timothy, Tiffany, Heather, Margaret, Madeline, Courtney, Stephanie, Djeferson, Rosina, Giovaneli, Rosann, Ashley, Dan, Alex, Luiz, John, Hank, Maria, Scott, Amber, Kelli, Laura, Terry, Nelci, Holly, Oscar, Osmar, Maddie, Magali, Alcido, Albino, Austin, and Fridolino