Potable water in Kuwait is produced by desalination of seawater in multistage flash desalination (MSF) plants. In this study the quality of potable water in Kuwait from different sources and stations along the distribution system to the end consumers was examined. Additionally, the quality of more than 20 types of bottled mineral waters available in Kuwait was also examined. Both physical properties and chemical constituents were included in this study. Major constituents and trace elements, especially toxic elements, were determined for all water samples, and the results compared with the 1993 World Health Organization Guideline Values. The results showed that all water samples tested complied with WHO Guidelines. Kuwait＇s public water supplies showed results in medium ranges for most of the mineral contents, major and minor parameters, compared to bottled mineral water.