The 2021 Southeast Asian Games (Vietnamese: Đại hội Thể thao Đông Nam Á 2021, lit. '2021 Southeast Asian Sport Festival'), officially known as the 31st Southeast Asian Games, or the 31st SEA Games and also known as Vietnam 2021, was the 31st edition of the Southeast Asian Games, the biennial regional multi-sport event which was held in Hanoi, Vietnam and its surrounding cities from 12 to 23 May 2022.