nationalist

Concise Oxford English Dictionary © 2008 Oxford University Press:
nationalism/ˈnaʃnəlɪzəm/

▶noun

• 1 patriotic feeling, principles, or efforts.

  ■ an extreme form of this marked by a feeling of superiority over other countries.

• 2 advocacy of political independence for a particular country.

– derivatives
nationalist noun & adjective,
nationalistic adjective,
nationalistically adverb.