Vietcombank sold the greenback 0.03% lower at VND26,468.
The State Bank of Vietnam’s reference rate was down 0.03% to VND25,208.
On the black market the dollar declined 0.04% to VND26,540.
Globally the dollar traded near a two and a half month low against the euro and close to a 10-month trough versus the risk-sensitive Aussie on Tuesday as investors cemented bets for a Federal Reserve interest rate cut this week and more to follow, Reuters reported.
The greenback changed hands just shy of a more than two-month low on the British pound with U.S. President Donald Trump renewing calls for aggressive monetary easing.
The euro was little changed early in Asia's morning, changing hands at $1.1765, not far from last Tuesday's high of $1.1780, a level that had not been seen since July 28.
Sterling was steady at $1.3605 after reaching $1.3621 in the previous session for the first time since July 8.