There is NO Embassy of Brazil in Da Nang City, Vietnam.
Do you want to find the Embassy of Brazil in Hanoi instead ?
Brazilian citizens who wanted to apply for the Vietnam e-Visa must have an ordinary passport having a validity period of at least six months from the date of intended entry into the country. To apply for the visa, you must make sure to provide all the information that is required on the online application form.
Vietnam’s Immigration Department launched the Vietnam e-Visa last February 2017. This was offered to 80 countries including Brazil.
