Last name Robertus (Роберт 
, Robertus 
, روبرت 
, and others...) , in the entire world, is a common family name. The cognomen Robertus is characteristic of Armenia, where it is a common surname, Kyrgyzstan, where it is quite a rare surname, and Russia, where it is a rare surname. Measured by absolute frequency, this name is the most popular in Armenia, Indonesia, and Russia. More frequently, Robertus is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Роберт | Kazakhstan, Armenia, Russia, Belarus, Ukraine |
| Robertus | Germany, Indonesia, Russia, United States, Netherlands |
| روبرت | Iran, Sudan, Algeria, Egypt, Iraq |
| רוברט | Israel |
| Роберто | Kazakhstan, Armenia, Russia, Kyrgyzstan, Ukraine |
| Ρόμπερτ | Greece |
| Робертус | Kazakhstan, Russia, Ukraine |
Bert, Bob, Rob, Robat, Robert, Robertas, Roberth, Roberto, Roberts, Robrecht, Roope, Róbert, Röbi, Röpke, Μπομπ, Берт, Боб, Лысый, Репке, Роб, Робат, Робер, Робертас, Робертс, Робэрт, בוב, רוב, רוברטו, רוברטס, بوب, رابرت, روب, روبرتس, روبرتو, روبيرت, روبيرتو, বব, โรเบิร์ต, バート, ボブ, ロバーツ, ロバート, ロブ, ロベルト, ロベール, 伯波, 伯特, 罗伯, 罗布, 羅伯特, 羅拔, and 鲍勃
| hans robertus NL (b. 1952) |
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| anja robertus NL (b. 1966) |
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| jan-lukas robertus researcher |
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Adi, Wijaya, Wibowo, Susanto, Septian, Arianto, Chandra, Bambang, Prabowo, Gunawan, Nugroho, Handoyo, Vogelaar, Setiawan, Setyawan, Budianto, Prasetyo, Kurniawan, Pamungkas, Pujowidiyanto, Wicaksono, Bellarmino, Widodo, Bellarminus, Irawan, Ganjar, Aldy, Bayu, Robi, Evan, Heru, Ooms, Yudi, Angga, Agung, Aarts, Bagus, Putra, Dimas, Galih, Willy, Sinaga, Susilo, Aditya, Candra, Robert, Daniel, Hendra, and Kristianto