In all the world, Siegelaar (Siegelaar 
) is an extremely rare unknown gender forename. Much more prevalently, Siegelaar is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Siegelaar | South Africa, United States, Canada, Brazil, Netherlands |
Jan, Edwin, Helma, Floor, Ilias, Soraya, Sophia, Alicia, Anthea, Arnout, Ashley, Chanel, Carmen, Pieter, Ronald, Doreen, Garret, Leslie, Joseph, Jeremy, Thomas, Nowall, Elton, Herman, James, Liezl, Jim, Ian, Wim, Anna, Adam, Chad, Koos, Kyle, Piet, Gert, John, Hans, Ilse, Ivan, Yara, Maria, Sarel, Basil, Bruce, Riaan, Demas, Liana, and Victor