Malawi is a country in Africa.
The Republic of Malawi is a land-locked country located in South-Eastern Africa. The capital city is Lilongwe. Although its National Team won a Quidditch World Cup final, there is no mention of Quidditch in its Wikipedia entry (Wikipedia).
Lexicon list of World Quidditch Teams
From the Web
Writing by J K Rowling on Pottermore: History of the Quidditch World Cup
Harry Potter Wiki: Malawi