Uranium nitride refers to a family of several ceramic materials: uranium mononitride (UN), uranium sesquinitride (U₂N₃) and uranium dinitride (UN₂). The word nitride refers to the −3 oxidation state of the nitrogen bound to the uranium.

Uranium nitride has been considered as a potential fuel for nuclear reactors. It is said to be safer, stronger, denser, more thermally conductive and having a higher temperature tolerance.