Vietnam in top ten countries for visitors to SingaporeVietnam was first listed among the top ten countries with the highest number of visitors travelling to Singapore last year, after more than a decade of being placed in 13th position. Vietnamese tourists in Singapore. The numerous options for shopping are the main attraction for Vietnamese tourists in Singapore. China topped the list with 3 million visitors, followed by Indonesia, India, Malaysia, Australia, Japan, the Republic of Korea, the US, Vietnam, and Thailand. Singapore welcomed 17.4 million international visitors last year, with an estimated turnover of US$20 billion.