Across the world, Demorest (Desmarais 
, Demorest 
) is a very rare principally boy's, but very infrequently feminine first name. The given name Demorest is habitual in Eastern Asia, particularly China, where it is an extremely rare masculine name. Predominantly, Demorest is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Desmarais | Mauritius, Canada, United States, New Zealand, France |
| Demorest | United Kingdom, Brazil, Canada, United States, France |