Serb diaspora (Serbian: Српска дијаспора/Srpska dijaspora) refers to the diaspora communities of ethnic Serbs. It is not to be confused with the Serbian diaspora, which refers to migrants, regardless of ethnicity, from Serbia. Due to generalization in censuses outside former Yugoslavia to exclude ethnicity, the total number of the Serb diaspora population cannot be known by certainty. It is estimated that 2–3 million Serbs live outside former Yugoslavia.