This paper reports on a study that examines the attitudes of university students and immigrants to the introduction of Swahili at a tertiary institution in South Africa. Data were obtained from a questionnaire survey and interviews with questions that covered the domains in which Swahili could be most useful, who should learn it and the reasons why they should learn it. The data were analysed both quantitatively and qualitatively within a theoretical framework which drew on theories of identity, multilingualism, migration and language ecology. The findings were categorised in terms of the main themes emerging from the analysis, including intercultural communication, African unification and Swahili as a "lingua franca." The attitudes of the immigrant sector were then compared to those of the South African students and the informal sector. Although there was consensus on the viability of Swahili in South Africa, the two groups differed in the emphases they placed on the various themes. The immigrants favoured the learning of Swahili within the South African context, for the promotion of intercultural communication which would facilitate their integration into the community, and for African unification. The South African respondents saw value in learning it for travelling beyond the borders of South Africa. The study concludes with a consideration of the implications of such findings for promoting the learning and teaching of Swahili as an additional language in the South African context.