There is no official or reliable count of the Romani populations worldwide.[5] Many Romani refuse to register their ethnic identity in official censuses for fear of discrimination.[6] Others are descendants of intermarriage with local populations and no longer identify only as Roma, or not at all.
As of the early 2000s, an estimated 4 to 9 million Romani people lived in Europe and Asia Minor,[7] although some Romani organizations estimate numbers as high as 14 million.[8]
Significant Romani populations are found in the Balkan peninsula, in some Central European states, in Spain, France, Russia, and Ukraine. The total number of Romani living outside Europe are primarily in the Middle East and North Africa and in the Americas, and are estimated in total at more than two million.[9][10] Some countries do not collect data by ethnicity.
Most Romani populations overseas were founded in the 19th century by emigration from Europe. There were Roma with Christopher Columbus on his third voyage to Hispaniola in 1498.[11]
The Romani people identify as distinct ethnicities based in part on territorial, religious, cultural and dialectal differences, and self-designation. The main branches are:[12][13][14][15]
Roma, concentrated in Central and Eastern Europe and Italy; they emigrated (mostly from the 19th century onwards) to the rest of Europe as well as the Americas.
Sinti, in German-speaking areas of Europe and some neighboring countries
Manush, in French-speaking areas of Europe (in French: Manouche)
Romanisæl, in Sweden and Norway. The Romani-Swedish population is mostly located in the southern parts of the country.
Scottish Lowland Gypsies are also considered a Romani group (at least by English Romanichal and Welsh Kale) although they are theorised to be a fusion between Romani and a native Traveller group. Their language is predominantly derived from Romani.
Muslim Roma, Horahane, Romanlar in Turkey and the Balkans
The Romani have additional internal distinctions, with groups identified as Bashaldé; Churari; Lori; Ungaritza; Lovari (Lovara) from Hungary; Machvaya (Machavaya, Machwaya, or Macwaia) from Serbia; Romungro from Hungary and neighbouring Carpathian countries; Erlides (Yerlii, Arli); Xoraxai (Horahane) from Greece and Turkey; Boyash (Lingurari, Ludar, Ludari, Rudari, Zlătari) from Romanian / Moldovan miners; Ursari from Romanian / Moldovan bear-trainers; Argintari from silversmiths; Aurari from goldsmiths; Florari from florists; and Lăutari from singers.
^3.8 million according to Pan and Pfeil, National Minorities in Europe (2004), ISBN978-3-7003-1443-1, p. 27f.; 9.1 million in the high estimate of Liégois, Jean-Pierre (2007). Roms en Europe, Éditions du Conseil de l'Europe.