Considering the lack of information on the phenolic compounds content and antioxidant activity of the blueberries produced in Brazil, the objective of this study was to assess the phenolic compounds content, anthocyanins content, and in vitro antioxidant activity of the main blueberry (Vaccinium sp.) cultivars grown in Brazil using the ABTS, DPPH, FRAP and β-carotene/linoleic acid methods.