Nitrides constitute an important class of materials due to their physical properties. In this way, all processes related to their synthesis or shaping are of relevant interest. A solvothermal process can be described as a reaction between precursors in a close system in the presence of a solvent and at a temperature higher than the boiling point of the solvent, with pressure being consequently involved. Depending on the pressure and temperature, the solvent is in sub- or supercritical conditions. The system precursors/solvent can be either homogeneous or heterogeneous. Concerning nitrides, solvothermal processes have been mainly developed in three domains: 1. the preparation of novel compositions / 2. the elaboration of nanocrystallites well defined in size and morphology / 3. the crystal-growth of functional nitrides such as GaN. Considering the synthesis of novel nitrides, different solvothermal reactions can be used versus the nitriding agent (N3- or N./GHPR_A_350185_O_XML_IMAGES/GHPR_A_350185_O_ILM0001.gif ) and the nature of the solvent (nitriding solvent or non-reactive solvent). Different examples will be given and the potentialities of solvothermal processes in the preparation of novel nitrides will be discussed.Read less <