An updated check-list of 69 species of Odonata occurring in the territory of the Republic of Belarus is presented in tabular form, indicating the presence of each species on the level of administrative regions (voblasc'). The data set for the check-list was created by compiling original data, records retrievable from available publications and databases, and those from museum collections. Contrary to current literature, due to a lack of reliable records, four Odonata species previously claimed for Belarus are not considered as being part of the Belarusian fauna, viz. Coenagrion ornatum, C. scitulum, Aeshna caerulea, and Somatochlora alpestris. Hitherto known records of Aeshna soneharai, a recently described new member of the European dragonfly fauna, are outlined. The history of discovery of rare species is critically reviewed. The flight period of each species is given in tabular form.