A detailed analysis of the potential commissioning of seawater desalination technologies by using geothermal energy is presented. The suitability of locations and their feasibility to install this technology are discussed with emphasis on Baja California, Mexico. Three main requirements must be combined to install seawater desalination technologies: the geothermal potential at a site, the need of fresh water under a shortage scenario, and access to seawater. Due to these constrains, few sites in the world offer these three requirements in which the use of geothermal energy for seawater desalination can be used. However, Mexico can deal with these constrains offering the possibility of studying, analyzing, developing and optimizing this concept.