Cognomen Marshmellow (Marshmellow 
) , in all the world, is a very rare family name. The last name Marshmellow is habitual in New Zealand, where it is a very rare surname, Australia, and Indonesia. In absolute terms, this name is the most popular in Indonesia, the United States, and Australia. Much less frequently, Marshmellow is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marshmellow | New Zealand, Indonesia, United States, Australia |