Abstract: The harmful effects of the free radicals on humans could be inhibited by antioxidants in fruits and vegetables.Tomato contains several antioxidants such as phenolic compounds and flavonoids. Consumption of tomatoes has been relatedepidemiologically to a lower incidence of cardiovascular diseases, prostate, gastrointestinal and epithelial cell cancers. In thisstudy ten different brands of canned tomato pastes on the Ghanaian market were evaluated for their antioxidant potentialsbased on their polyphenolic and flavonoid contents as well as DPPH free radical scavenging activities. The amount of totalphenolic compounds extracted were determined using the Folin-Ciocalteu reagent. Total flavonoid content was determinedusing aluminum chloride colorimetric assay method. The antioxidant activities were evaluated using the DPPH scavengingactivity. Total phenolic and flavonoid contents ranged from 6.26 mg GAE/gdw to 22.82 mg GAE/gdw and between 1.83 µgQE/gdw to 45.26µg QE/gdw respectively. DPPH scavenging activity ranged from 8.03% to 29.69%. High and significantcorrelations existed between antioxidant activities, total phenolic and flavonoid contents of tomato paste samples analysedindicating these pastes are potentially rich sources of dietary polyphenolic compounds and antioxidants, and might contributeimportant health benefits to consumers.