The Vietnam National University in Hanoi and Vietnam National University in Ho Chi Minh City have in the 101-150 placed group.
This is the first time the Vietnam National University in Hanoi has entered the rankings.
Vietnam National University in Ho Chi Minh City was the only Vietnamese representative to make the QS Top 50 Under 50 last year.
Originally published in 2012, the QS Top 50 Under 50 allows some of the world's top young universities to shine and since 2015 has tripled its range to include the next 100 institutions under 50 years old.