In the world, Marcelus (Marcelus 
) is quite a rare male first name. The first name Marcelus is habitual in the Dominican Republic, where it is a rare male name, Romania, and Brazil. In absolute terms, it most frequently occurs in Brazil, Indonesia, and Nigeria. Also, Marcelus is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Marcelus | Dominican Republic, Brazil, Haiti, Nigeria, United States |
| marcelus de bruyn NL (b. 1930) |
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| marcelus silva dos santos Brazilian rower, BR (b. 1973) |
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| marcelus kemp American professional basketball player, US (b. 1984) |
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| marcelus zwartjens |
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