English: On Brazilian territory there are place names of indigenous origin with over five hundred years of existence, given by Indians themselves in the past, perhaps even before the Discovery of Brazil, together with artificial indigenous names having few decades of existence. Such names appeared since the second half of the 19th century and they became very common until the 1950s. These artificial toponyms are often confused with spontaneous place names of indigenous origin, deriving from ancient Tupi and the general languages originated from it, i.e. the southern general language, the general Amazonian language and Nheengatu. The historical reasons for the occurrence of such phenomenon were the strengthening of political nationalisms in the last century, with reflections in Brazil, t he advent of Modernism, with profound effects on Western culture in general and on Brazilian culture in particular. This paper analyzes such artificial place names, making an attempt to classify them.