The desalination process is used to reduce the salinity of water to meet the water demand in water-scarce regions. There are several methods available for water desalination, each with merits and demerits in terms of raw water treatment, process operations, and water quality management. In the present analysis, a systematic review of various desalination processes is presented based on technical, economic, and environmental analyses. Thermal and Reverse Osmosis (RO) processes are widely studied in the literature and used for Sea Water (SW) desalination on a larger scale to produce drinking water. The technical and economic criteria are used to show that Seawater Reverse Osmosis (SWRO) technology is better when compared to other desalination technologies.