Data shows that the European country received US$59.8 million, followed by Cambodia with US$37.9 million and Malaysia with US$13.9 million.
Vietnamese investment in the United States was US$12.6 million in the January-April period.
According to the GSO, total outbound Vietnamese investment reached US$149.5 million in the first four months of the year, including US$96 million in 44 new projects and US$53.5 million in existing projects.
A breakdown of the sectors shows that science-technology projects received the largest share at US$81.8 million, accounting for 54.7% of the total investment pledges.
Financial, banking and insurance services came second with US$36.1 million, followed by US$16.5 million in wholesale, retail, car and motorbike repairs.
Investment in accommodation and catering services reached US$7 million.
