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Surname Rigor (Rigor , Rigueur , Rigore ) , all around the world, is quite a common last name. The last name Rigor is characteristic of Philippines, where it is quite a rare surname, United Arab Emirates, and Portugal. Not in comparison with a country's population, this name is the most popular in Philippines, the United States, and Brazil. Much less frequently, Rigor is the forename as well as the last name.