Drinking green tea (GT) is presently becoming popular among consumers due to potential health benefits. Sri Lanka is well-known for its high-quality black tea, local manufacturers have now been entered to the GT market. Thus, it is important to develop and maintain the standards for GT products. The present study was conducted to study the quality of commercially available GT products manufactured in Sri Lanka. Thirteen local GT samples collected from supermarkets in Colombo, Sri Lanka were analyzed for physical and chemical parameters. Colour of the GT samples was brownish and greenish, whereas the infusion color was coppery and golden yellow. Moisture content varied from 4.4% to 8.9%. Water extract of samples varied from 37.6% to 49.7%. Total ash content ranged from 5.5% to 6.5%. Water soluble ash content varied in a wide range. The alkalinity of water-soluble ash% varied from 0.6% to 0.9%. Percentage of acid insoluble ash ranged from 0.1% to 0.5%. Highest crude fibre content was 19.2% (range 12.1% to 19.2%). Total polyphenol content ranged from 16.6% to 20.4% whereas amino acid content varied greatly, and the highest value was 1.0%. The highest value of antioxidant activity observed was 11.0%. Aluminum in the GT samples were not in a risky level. Total ash, water extract, total polyphenol, and acid insoluble ash complied with the ISO standards while the alkalinity of water-soluble ash and water soluble ash were little below than the recommended value. Crude fiber content of some samples exceeded the maximum recommended value.