Objective: The purpose of this study was to determine water usage characteristics in cafes/ restaurants and the factors affecting it in Ortahisar district of Trabzon. Methods: The study population of this descriptive research was cafes/restaurants in Ortahisar district of Trabzon. The 302 cafes/restaurants were reached and 203 of them accepted to participate to study. Managers were informed about study and after verbal approval, the questionnaire form was applied by face to face interview. In the analysis phase of data, cafes/ restaurants were divided into two categories as "in the mall" and "not in the mall". Results: Monthly average tap water consumption were 58.8 ± 68.9 (2.9-658.9) m3 and 53.4 ± 30.9 (13.2- 102.5) m3 for cafes/restaurants which were not in the mall and in the mall, respectively. The 165 (81.3%) of cafes/restaurants previously experienced water cut. In such a case, drinking water was supplied from the water tank in secondly. More than 80% of the water tanks in cafes/restaurants were cleaned less than once a month. Monthly tap water consumption of cafes/restaurants not in the mall was significantly correlated with number of employees, number of taps, number of toilets, restaurant area, seating capacity, number of weekly customers; in the mall was correlated with number of weekly customers. Conclusion: The tap water is commonly used in cafes/restaurants. Water cut is a major problem that cafes/restaurants faced. In this case, water tanks, most of which are not cleaned regularly are important source for drinking water.