Around the globe, Johannus (Johannus 
) is a very rare boy's given name. The forename Johannus is characteristic of Netherlands, where it is a rare male name, South Africa, where it is a very rare male name, and the United States, where it is an extremely rare principally boy's, but very seldom feminine name. Much less frequently, Johannus is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Johannus | Netherlands, Spain, United States, United Kingdom, South Africa |
| johannus lindemans (b. 1874) |
|
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| johannus josephus hens NL (b. 1889) |
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| johannus frederikus adrianus göbel Dutch architect, NL (b. 1900) |
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johannus jacobus abbink spaink |
|
| johannus joseph moonen (born 1954) (b. 1954) |
|
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| johannus petrus faber |
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Leo, Kusters, Deruiter, Degroot, Gunning, Lemette, Heesbeen, Vangent, Vanbeek, Benkers, Francis, Weijers, Moolenschot, Schulpen, Reijnders, Johansen, Trondheim, Wibisono, Roestenburg, Franken, Cuarezma, Chapman, Michael, Tan, Oort, Smith, Colam, Boots, Pitlo, Rogvi, Vogel, Steger, Amburn, Crucet, Bakker, Pilaar, Demers, Göbel, Jansen, Elands, Hector, Moesker, Grevelink, and Valkenhoff