- Starting date 27 Mar 2021
- Format 5v5
ESL Vietnam Open Cup 2021 is a tournament organized by ESL Vietnam. The tournament is open to teams from Vietnam. Eight teams from the qualifiers will advance to the Main Event stage of the tournament. They will be divided into 2 groups of 4 teams and will play a round robin group stage. Top 2 teams of each group will advance to the double elimination bracket playoffs.