Navigation is a fundamental information technology integral to human activities across economic, cultural, military, and other sectors. Maritime navigation, in particular, is a field with ancient origins that continues to evolve. Despite its roots in antiquity, it remains a dynamic area with significant potential for future advancements. This chapter introduces key maritime navigation technologies such as celestial navigation, landmark navigation, land-based radio navigation, and satellite navigation. Additionally, it explores quantum navigation systems, which are currently in the experimental phase within the maritime sector. Both land-based radio navigation and satellite navigation fall under the broader category of radio navigation methods.