Last name Mustum (Mos 
, Most 
, Moutarde 
) , around the globe, is a common cognomen. The last name Mustum is characteristic of Botswana, where it is quite a common surname, Netherlands, and Algeria, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in Algeria, Egypt, and Netherlands. Likewise, Mustum is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mos | India, Poland, Egypt, Germany, Algeria |
| Most | India, Morocco, Egypt, Germany, Algeria |
| Moutarde | United Kingdom, United States, France, Germany, Netherlands |
| Mustum | Australia, India, France, United States |