Knowledge of the fluoride content of the drinking water is essential to all oral care professionals to plan of preventive dental programs and prescribes of fluoride supplements. Evidence of fluoride content in bottled water in Chennai, India is largely anecdotal. Hence the fluoride (F) concentration of commercially available packaged drinking water in Chennai, India was determined. The mean F content of the samples was 0.13 mg/L with a range of 0.08 to 0.21 mg/L.