This chapter provides an overview of hydrogen production from coal, with a focus on coal gasification technologies. It begins by describing the origin and classification of coal, as well as the basic principles of coal gasification. The chapter discusses the characteristics of coal, key gasification reactions, and the influence of operating parameters on the composition of syngas. Conventional gasifier technologies, including fixed bed, fluidized bed, and entrained flow gasifiers, are reviewed along with their advantages and limitations. Advanced gasification methods, such as supercritical water gasification, plasma gasification, chemical looping gasification, decoupled gasification, and underground coal gasification, are also discussed, with an emphasis on producing hydrogen-rich syngas. Finally, downstream syngas cleaning and removal methods for acid gases (H2S and CO2) utilizing physical and chemical solvent-based absorption processes are described to outline the steps required for producing clean hydrogen.