Do children need a separate visa and parental consent letter to enter Vietnam?

A 2-year-old child with their own passport must have a separate e-visa application — children cannot be added to a parent's visa form.

A 15-year-old traveling with one parent through China should carry a birth certificate and ideally a notarized consent letter from the absent parent, especially if surnames differ. An English translation of the birth certificate may be required at Chinese transit.

When applying for e-visas for two children traveling with only one parent, one child's application was approved quickly while the other faced additional questions. Vietnamese immigration may request a notarized consent letter from the absent parent.