This chapter provides an overview of the use of zeolites in photocatalysis. It begins by discussing the main principle of photocatalytic process and by briefly recalling band theory, a fundamental theory in the application of semiconductors. It will move gradually towards heterogeneous photocatalysis, illustrating the main strategies for enhancing the photocatalytic response of semiconductors. The chapter will proceed by highlighting the role of zeolites in light-driven reactions, underlining how their structural and textural properties, as well as their versatility, are unique for various fields of application. Emphasis is placed on their high surface area, adsorption capacity, and well-defined porous architecture, which enable efficient surface interactions and the incorporation of active photocatalytic components. The chapter further surveys the main classes of photocatalytic reactions involving zeolites, including pollutant degradation, energy conversion processes, and selective organic transformations. Finally, current limitations and key challenges associated with zeolite-based photocatalysis are discussed, outlining future perspectives for the development of advanced composite systems.