Incorporating cutting-edge technologies to improve urban living and environmental sustainability, human-centered infrastructure for sustainable smart cities places a high priority on public participation and well-being. Creating livable, accessible, and inclusive urban environments that serve a variety of demographics is the main focus of this strategy. Utilizing smart technologies to maximize resource use, lower pollution, and enhance public services—such as the Internet of Things (IoT), artificial intelligence (AI), and big data analytics—is one of the key components. These cities ensure that technology meets community requirements by encouraging active participation through a human-centric design approach. Reducing urban carbon footprints and improving quality of life are made possible by sustainable practices like the use of renewable energy, effective waste management, and green public spaces. Public participation and ongoing education are crucial for equipping citizens with the skills and information they need to prosper in the context of smart cities. In the end, this all-encompassing strategy promotes resilient, adaptable urban ecosystems that promote environmental and human health.