Abstract: “Tourism is one of the main incomes of Thailand that directly contributes to the national Gross Domestic Product (GDP). Tourism affects not only on economic sector but also on the environment and society. Sustainable tourism (ST) has become more important in conserving and maintaining natural resources for the next generation. The ST requires efficient uses of natural resources, particularly water resource. The objective of this research is to study water resource efficiency towards sustainable tourism at Patong Municipality, Kathu district of Phuket. Water shortage has taken place in Patong municipality for decades. A set of semi-structure questionnaires was used to in-depth interview respondents selected by using a purposive sampling method. The total respondents were 44 composing of 4 groups including hotel business, local community, governmental organization, and tourism-related association. Data obtained were analyzed using descriptive and content analysis methods. The study found”

Keywords: Water Resource Efficiency; Sustainable Tourism; Patong Municipality, Phuket Province