WordNet sense 1 (fanatically patriotic):

chauvinistic, jingoistic, flag-waving, superpatriotic, ultranationalistic

WordNet sense 2 (inspired by love for your country):

loyal, patriotic

WordNet sense 3 (devotion to the interests or culture of a particular nation including promoting the interests of one country over those of others):

nationalist

WordNet sense 4 (limited to or in the interests of a particular nation):

national