This comparative review examines the dynamics of urban farming and its impact on food supply in the United States (USA) and African cities. Urban farming, also known as urban agriculture, involves various practices such as rooftop gardening, community gardens, and aquaponics, and plays a crucial role in enhancing food security and sustainability in both developed and developing regions. The study investigates the unique challenges and opportunities faced by urban farming initiatives in these regions, considering factors like infrastructure, socio-economic conditions, and agricultural practices. In the USA, urban farming has gained momentum as a sustainable solution to enhance local food production and reduce the carbon footprint associated with long-distance food transportation. The analysis delves into the policies, technological advancements, and community engagement strategies that have contributed to the success of urban farming in American cities. Additionally, the study examines the integration of rooftop gardens, vertical farming, and community-supported agriculture in the urban landscape. In contrast, African cities grapple with distinct challenges in implementing and sustaining urban farming practices. These challenges include rapid urbanization, limited resources, and diverse climatic conditions. The review explores how these factors impact the feasibility of urban farming in African cities. Despite these challenges, innovative approaches such as vertical gardening and container farming have emerged to overcome resource constraints and limited arable land. The study highlights the importance of urban farming in enhancing food security, nutrition, and community well-being in both the USA and African cities. It emphasizes the need for context-specific solutions that address the unique challenges faced by rapidly urbanizing regions. The success of urban farming in the USA underscores the importance of comprehensive policy frameworks, while the positive outcomes in African cities highlight the need for tailored approaches. The future outlook for urban farming and food supply in both contexts is shaped by various factors, including urbanization, land tenure, environmental sustainability, and the role of cities in mitigating greenhouse gas emissions. The study recommends that policymakers and practitioners should tailor urban farming policies to the unique socio-economic and environmental conditions of each city, encourage the adoption of advanced technologies, foster community involvement, and develop and improve urban infrastructure to support sustainable agriculture. In conclusion, addressing food security challenges through urban farming requires a nuanced and context-specific approach. By learning from successful models in the USA and innovative strategies in African cities, policymakers and practitioners can contribute to the development of sustainable and resilient urban food systems worldwide.This comparative review examines the dynamics of urban farming and its impact on food supply in the United States (USA) and African cities. Urban farming, also known as urban agriculture, involves various practices such as rooftop gardening, community gardens, and aquaponics, and plays a crucial role in enhancing food security and sustainability in both developed and developing regions. The study investigates the unique challenges and opportunities faced by urban farming initiatives in these regions, considering factors like infrastructure, socio-economic conditions, and agricultural practices. In the USA, urban farming has gained momentum as a sustainable solution to enhance local food production and reduce the carbon footprint associated with long-distance food transportation. The analysis delves into the policies, technological advancements, and community engagement strategies that have contributed to the success of urban farming in American cities. Additionally, the study examines the integration of rooftop gardens, vertical farming, and community-supported agriculture in the urban landscape. In contrast, African cities grapple with distinct challenges in implementing and sustaining urban farming practices. These challenges include rapid urbanization, limited resources, and diverse climatic conditions. The review explores how these factors impact the feasibility of urban farming in African cities. Despite these challenges, innovative approaches such as vertical gardening and container farming have emerged to overcome resource constraints and limited arable land. The study highlights the importance of urban farming in enhancing food security, nutrition, and community well-being in both the USA and African cities. It emphasizes the need for context-specific solutions that address the unique challenges faced by rapidly urbanizing regions. The success of urban farming in the USA underscores the importance of comprehensive policy frameworks, while the positive outcomes in African cities highlight the need for tailored approaches. The future outlook for urban farming and food supply in both contexts is shaped by various factors, including urbanization, land tenure, environmental sustainability, and the role of cities in mitigating greenhouse gas emissions. The study recommends that policymakers and practitioners should tailor urban farming policies to the unique socio-economic and environmental conditions of each city, encourage the adoption of advanced technologies, foster community involvement, and develop and improve urban infrastructure to support sustainable agriculture. In conclusion, addressing food security challenges through urban farming requires a nuanced and context-specific approach. By learning from successful models in the USA and innovative strategies in African cities, policymakers and practitioners can contribute to the development of sustainable and resilient urban food systems worldwide.