Systems and methods for storing and validating namespace metadata are disclosed. An exemplary system includes a memory component and a processing device identifying a namespace identifier associated with a first write instruction from a host process and combining the namespace identifier with a namespace offset included in the first write instruction to form a logical address. The logical address is translated into a physical address and included in a second write instruction along with data to be written and the physical address. The second write instruction is sent to a memory component causing the data to be written at the physical address, and the logical address to be stored as metadata associated with the data. The logical address may be translated using a namespace table and one or more translation tables, where the namespace table has entries including a starting location and size of a namespace in a translation table.