Russian Brazilians (Portuguese: Russo-brasileiros, Russian: Русские бразильцыRusskiye Brazil'tsy) are Brazilian citizens of full, partial, or predominantly Russian national background or descent, or Russian-born people residing in Brazil. The term can also refer to someone with a Brazilian mother and Russian father, or vice versa.
Fernando Lázaro de Barros Basto in Síntese da história da imigração no Brasil (1970) gives a total number of 319,215 immigrants from "Russia" (i.e. the Russian Empire pre-1917 and the Soviet Union post-1917) for the period of 1871 to 1968. A substantial portion of this number is due to ethnic Poles and ethnic Germans immigrating from the Russian Empire.