The paper explores the cybersecurity challenges in Smart Cities, focusing on African metropolises. It highlights the rapid urbanization and digital transformation that have led to the integration of advanced technologies to enhance efficiency, sustainability, and urban life. However, this shift towards interconnected and technology-driven urban environments has introduced a host of cybersecurity threats, including data breaches and infrastructure disruptions. The case review examines specific instances of cybersecurity challenges in cities like Johannesburg, Nairobi, Lagos, and Cairo, emphasizing the vulnerabilities in critical infrastructure such as energy grids, transportation systems, and healthcare networks. The paper also discusses the socio-economic implications of cyber threats, including economic losses, disruptions in essential services, and erosion of public trust. It underscores the need for comprehensive cybersecurity strategies tailored to the unique challenges faced by Smart Cities in Africa, emphasizing the importance of resilient cybersecurity frameworks to safeguard citizen data and urban functionality. The findings aim to contribute to policy decisions, technological implementations, and collaborative efforts to build secure and resilient Smart Cities in Africa.The paper explores the cybersecurity challenges in Smart Cities, focusing on African metropolises. It highlights the rapid urbanization and digital transformation that have led to the integration of advanced technologies to enhance efficiency, sustainability, and urban life. However, this shift towards interconnected and technology-driven urban environments has introduced a host of cybersecurity threats, including data breaches and infrastructure disruptions. The case review examines specific instances of cybersecurity challenges in cities like Johannesburg, Nairobi, Lagos, and Cairo, emphasizing the vulnerabilities in critical infrastructure such as energy grids, transportation systems, and healthcare networks. The paper also discusses the socio-economic implications of cyber threats, including economic losses, disruptions in essential services, and erosion of public trust. It underscores the need for comprehensive cybersecurity strategies tailored to the unique challenges faced by Smart Cities in Africa, emphasizing the importance of resilient cybersecurity frameworks to safeguard citizen data and urban functionality. The findings aim to contribute to policy decisions, technological implementations, and collaborative efforts to build secure and resilient Smart Cities in Africa.