Around the globe, Demattei (Demattei 
) is an extremely rare unknown gender given name. Much more prevalently, Demattei is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Demattei | Italy, Paraguay, Colombia, United States, Argentina |
Mr, Raul, Rosa, Rene, Dane, Dave, Dale, Dawn, Dora, Gary, Gail, Geri, Gina, Lisa, Luca, Luis, Lynn, Jose, John, Joao, Joel, Jenn, Beni, Jeri, Clay, Axel, Ana, Kay, Kim, Pat, Dan, Lou, Jon, Joe, Jim, Eza, Ida, Mary, Mark, Mike, Sara, Sean, Alan, Anna, Abel, Abbe, Aida, Chad, and Juan