The 58th Dan Kolov & Nikola Petrov Tournament, was a sport wrestling event held in Plovdiv, Bulgaria between 8 and 11 April 2021. This international tournament includes competition in both men's and women's freestyle wrestling and men's Greco-Roman wrestling. This tournament is held in honor of Dan Kolov who was the first European freestyle wrestling champion from Bulgaria and European and World Champion Nikola Petroff.