I think it is Puerto Williams in Chile But Villa Las Estrellas in Antarctica has to the the Southernmost
The most southerly country in the world is New Zealand, specifically its southernmost point, the Auckland Islands. If we are talking about the southernmost point of any landmass, that would be Antarctica.
Chile is the southernmost Spanish-speaking country in the world. It is located in South America, bordered by Argentina to the east, Bolivia to the northeast, and Peru to the north.
Denmark is the southernmost Scandinavian country.
South Africa is the southernmost African country.
The southernmost region in Africa is the Republic of South Africa. The southernmost country in Africa is the country of South Africa.
Panama is the southernmost country in Central America.
Among those choices, New Zealand is southernmost.
The most southerly country in the world is Chile. Its southernmost point is the South Shetland Islands.
The southernmost Asian country is Indonesia, with the capital city Jakarta.
Philippines
Chile is the southernmost country in the world. Its southern tip is located at about 53 degrees latitude in the region of Cape Horn.