Are there any countries in the world where there are ONLY white people?

Well, immigrant countries like the US, Canada, Australia and New Zealand are far from only white. Argentina has a higher white population than the US for example. European countries either have immigrants and/or they have gypsies, so no European country is 100% white either. Small Eastern European countries like Moldova, Lithuania, Belarus, etc have extremely small non-white populations, but they are still not 100% white either, but maybe 98-99% if that is good enough for you. I suppose Iceland probably has a very small non-white population as well.