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Across the world, Rogerius (Ruggero , Rogério , Rogier ) is a common boy's first name. The given name Rogerius is characteristic of Aland Islands, where it is quite a common boy's name, Italy, and Portugal, where it is quite a rare boy's name. Not in comparison with a country's population, it is the most numerous in Italy, Portugal, and Netherlands. Much less frequently, Rogerius is the last name as well as the forename.
Rogerius is also a name for the fictitious and mythical characters: Ruggero De Ceglie , the Italian television character, I soliti idioti; Ruggero Lastouc , the operatic character in the opera La rondine by Giacomo Puccini and Ruggero Buffoni .