No (both to it being a country and to being from there) its a continent, neutral territory, and a scientific preserve. there are 5 or 6 countries which have made territorial claims in the antarctic, but none of them are internationally recognized, or broadly held as valid (though once someone forces the issue, look forward to a land grab race the sort we have't seen in centuries).
Interestingly, the political status of antarctica is very similar to that of the Moon and other stellar bodies. Technically nuetral, but remaining that way only because everyone is afraid to rock the boat.
anyways, Oz (Australia or L. Frank Baum's fictional alegory-land, take your pick)