Around the globe, Gillium (Gillium 
) is a very rare predominantly boy's, but very seldom female first name. More frequently, Gillium is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Gillium | United Kingdom, South Africa, United States, France, Israel |
La, Danny, David, Dione, Donna, James, Nancy, Orvin, Martin, Marvin, Debra, Muriel, Sidney, Sylvie, Alexis, Andrew, Arthur, Kendra, Kelley, Pierre, Robert, Sandra, Rhyse, Ricky, Ralph, Amy, Dax, Tia, Mary, Mays, Andy, Barb, Karl, Rick, Dino, John, Jean, Sally, Sonia, Steve, Alvin, Carol, Cathy, Betty, Karen, Kevin, Reuben, and Daniel