Public transportation is a foundational element of community participation, economic opportunity, and access to essential services. For individuals with disabilities, however, significant barriers persist that limit access and diminish quality of life. This entry synthesizes global research to argue that these barriers are multidimensional, extending beyond physical infrastructure to include informational, attitudinal, and psychosocial dimensions. These challenges vary considerably by disability type, distinctly affecting users of mobility aids and individuals with sensory, intellectual, or communication disabilities. The consequences of inaccessible transport systems are severe, contributing to social isolation, hindered healthcare access, and reduced educational and economic participation. Conversely, facilitators such as reliable physical infrastructure, comprehensive staff training, and assistive technology can promote self-efficacy and social inclusion. This entry concludes that a holistic approach—integrating universal design, robust policy, and user-centered innovation—is imperative for achieving equitable and dignified mobility for all citizens.