Hoang, born in 2000, from the central province of Quang Binh won five gold medals and broke two SEA Games records at the biggest regional sporting event held last year in Vietnam.
He is one of the country’s leading athletes and is expected to win gold medals in the men’s swimming category at SEA Games 32.
SEA Games 32 will be held in Phnom Penh, Siem Reap, Preah Sihanouk, Kampot, and Kep in Cambodia from May 5 to May 17.
Vietnam is due to send 1,003 members, including 702 athletes, to the regional Games.
Vietnam will compete in 30 out of 36 sports at the Games, aiming for 90-120 gold medals to enter the top three on the medal tally.
As the host of SEA Games 31, Vietnam topped the medal table with 205 golds. Thailand came second with 92 and Indonesia third with 69.
