Axions have become a central focus in contemporary particle physics and cosmology, emerging as theoretically well-motivated dark matter candidates that naturally arise from solutions to the strong CP problem. They provide a unique bridge between the visible and dark sectors, connecting high-energy theory, early-universe cosmology, and a broad range of experimental frontiers. As a result, searches for axions and axion-like particles now span precision laboratory experiments, large-scale astrophysical observations, and collider studies, forming one of the most dynamic and rapidly evolving