Vietcombank sold the dollar at VND23,895 Monday, up 0.02% from Sunday.
Eximbank maintained its rate at VND23,850, and Techcombank VND23,867.
The State Bank of Vietnam raised its reference rate by 0.08% to VND23,753.
The greenback was sold at VND23,660 on the black market, unchanged from Sunday.
The dollar has gained over the dong by 0.7% since the beginning of the year.
Globally, the dollar was on the back foot on Monday after a mixed U.S. jobs report provided little directional conviction and as market focus turned to inflation data from the world's two largest economies due this week.
The U.S. economy added fewer jobs than expected in July, data on Friday showed, but it recorded solid wage gains and a decline in the unemployment rate, according to Reuters.
While the dollar fell to a one-week low against a basket of currencies in the aftermath of the data, its losses were capped as the report pointed to a still-tight labour market, suggesting the Federal Reserve may need to keep rates higher for longer.
The U.S. dollar index last stood at 101.98, languishing near Friday's low of 101.73.
Sterling rose 0.04% to $1.2756, while the euro dipped 0.01% to $1.1010.