All over the world, Marnus (Marnus 
) is a rare male first name. The first name Marnus is habitual in Sub-Saharan Africa, particularly South Africa, where it is a rare masculine name, and Tanzania, where it is a very rare male name. Much less frequently, Marnus is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Marnus | Tanzania, South Africa, Thailand, United Arab Emirates, Namibia |
|
marnus labuschagne South African-born Australian cricketer, AU (b. 1994) |
|
| marnus schoeman South African rugby union footballer, ZA (b. 1989) |
|
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| marnus van der merwe South African rugby union footballer (1997-), ZA (b. 1997) |
|
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| marnus potgieter South African rugby union player, ZA (b. 1999) |
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Nel, Booysen, Plessis, Grobler, Niekerk, Erasmus, Heerden, Viljoen, Olivier, Wessels, Broodryk, Prinsloo, Rensburg, Ferreira, Swanepoel, Koekemoer, Pretorius, Potgieter, Robbertze, Nieuwoudt, Du Plessis, Engelbrecht, Barnard, Coetzee, Strydom, Fourie, Zyl, Marx, Roux, Roos, Louw, Hugo, Merwe, Meyer, Steyn, Smith, Van Der Merwe, Swart, Kriel, Marais, Mulder, Snyman, Kruger, Dreyer, Jacobs, Truter, Visser, Venter, Botha, and Janse Van Rensburg