This chapter investigates the phenomenon of code-switching in South African political discourse, specifically how it strengthens populist rhetoric and contributes to the formation of political identities. The goal was to examine the precise patterns and uses of code-switching in the campaign speeches of Julius Malema (Economic Freedom Fighters, EFF) and Jacob Zuma (Umkhonto we Sizwe, MK). Using a qualitative technique, the study examines recorded speeches through topic and discourse analysis, led by the theoretical framework of populist discourse and identity creation. The findings show that code-switching serves three basic purposes: emphasising individuality, appealing to emotions, and conforming to social or cultural standards. Malema’s practice of multilingual code-switching allowed him to cross ethnic and linguistic lines, portraying the EFF as a welcoming and unifying force. Zuma’s code-switching, primarily into isiZulu, boosts cultural pride and historical symbolism, portraying MK as an African-rooted movement. Both leaders employ code-switching to foster a sense of belonging, simplify political concerns, and build a “us vs. them” dynamic that boosts their populist appeal. The study contends that code-switching is a significant rhetorical tool in South African politics, allowing politicians to communicate with a wide range of audiences while promoting political identities and populism. It emphasises the interaction of language, identity, and power in a multilingual society, allowing for a better understanding of how political leaders employ linguistic methods to gain support and affect voter opinions.