Which country has the largest number of foreigners of different nationalities in the world?

America, Canada, Australia. Because these three countries are the largest immigrant countries in the world. Especially in the United States, people from any country in the world, and even people from various regions. People of different nationalities can have the permanent residency in the country (commonly known as "green card") as long as the conditions are met. People who enjoy permanent residency are foreigners, not American citizens. In addition, some American citizens also have foreign nationality. Because the United States does not recognize dual internationalism, but it almost acquiesces.