Family name Antrax (Antrax 
, Anthrax 
) , in the entire world, is a very rare cognomen. The surname Antrax is habitual in Sweden, where it is a rare surname, Israel, where it is a very rare surname, and Mexico. Measured by absolute frequency, it most frequently occurs in Mexico, Sweden, and the United States. Likewise, Antrax is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Antrax | Mexico, Spain, United States, Colombia, Guatemala |
| Anthrax | Sweden, Israel, Mexico |