Sotho  or Sesotho – is a Southern Bantu language of the Sotho-Tswana (S.30) group, spoken primarily by the Basotho in Lesotho, where it is the national and official language; South Africa, where it is one of the 11 official languages; and in Zimbabwe where it is one of 16 official languages. Like all Bantu languages, Sesotho is an agglutinative language, which uses numerous affixes and derivational and inflexional rules to build complete words

More information: Wikipedia

Native speakers: 5.6 million (2001–2011)

7.9 million L2 speakers in South Africa (2002)

Official language in: Lesotho, South Africa, Zimbabwe