Based on the results of four exercises, the 22-year-old gymnast scored 111.65 points.
The second place was taken by her compatriot Lala Kramarenko (104.75), and the third - by the representative of Slovenia Ekaterina Vedeneeva (93.30).
Dina Averina is a 13-time world champion and a ten-time European champion.
Earlier, Dina and Arina Averin won gold and bronze in the ribbon exercise at the European Championship in Bulgaria.