The Antarctic Circle itself does not pass through any countries. This is because the Antarctic Circle is an imaginary line located at approximately 66.5 degrees south latitude, which encompasses the continent of Antarctica. While it may seem that this circle could intersect with countries in the southern hemisphere, it is important to note that the landmass of Antarctica is not part of any country.
The Antarctic Treaty System governs the region, ensuring that Antarctica is used primarily for peaceful purposes and scientific research, and prevents any country from claiming ownership over any part of the continent. As a result, while several countries have territorial claims on portions of Antarctica, the Antarctic Circle itself does not traverse any recognized countries.