The female legal age for getting married in Vietnam is 18 years old. However, it doesn't mean that all local girls strive to find a husband so early. They often decide to get a higher education and build a career first. Of course, lots of Vietnamese mail order brides say "Yes" to their boyfriends when they get 20, but everything depends on the situation. If you meet a beautiful lady, fall in love with her, and decide to propose to her, don't think about age a lot. Your girlfriend just should be at least 18.