In this era of digital transformation, libraries are experiencing a significant transition from conventional information repositories to technologically advanced, user-centered smart environments. This paper therefore explores the concept of smart libraries, focusing on how emerging technologies are redefining the core library functions and services, especially in developing nations. It further explores the implications of these developments on information access, knowledge organization, user engagement, and library management practices. Drawing from current trends, this article provides a scholarly discuss on the impacts and challenges facing library and information professionals in developing nations in adopting smart technologies. The study concludes with strategic recommendations for fostering innovation, and reinforcing the evolving role of libraries as essential infrastructures in the knowledge society