In response to appeals for empirical data on culture-specific differences and developmental pathways of acculturative stress among young migrants and refugees, the present study examines the cultural adjustment patterns of ethnically diverse migrants to Australia. Two hundred and seventy three primary and high school students (comprised of former-Yugoslavian and Chinese cultural groups) participated in this investigation. Participants completed self-report measures of acculturation, internalising symptoms, social support, self-concept/esteem, ethnic identity, and future outlook, and were compared by gender, school level, cultural group, heterorganic ethnicity, and residential duration variables. The main findings from this study indicate: (1) patterns of cultural adjustment differ for children and adolescents according to cultural background, gender, age, and length of stay in the host culture; (2) former-Yugoslavian migrants generally report greater identification and involvement with Australian cultural norms than Chinese migrant youth; and (3) the divergent variables social support and bicultural adjustment are not universally paired with acculturative stress, as previously indicated in other adult migrant and acculturation studies. Specific cross-cultural trends and differences are discussed.