Vietnam welcomed over 3.3 million overseas arrivals in the first six months of this year, up 13.9 percent against the same period last year, according to the General Statistics Office.
Vietnam's major tourism markets include the Republic of Korea, Thailand, Malaysia, Japan, France, China and the US.
Of the total, nearly 3 million arrived in Vietnam by air while 27,000 came via sea routes and 500,000 by land.
However, June saw a slight year-on-year drop of 6.6 percent, with just more than 417,000 arrivals.
The contraction is attributed to the impacts of the global economic turmoil that leads to the tightened spending on tourism.
The number of Chinese tourists registered the largest reduction at 12.3 percent, followed by that of Cambodian visitors at 2.6 percent.