: Marriage patterns are different between countries and even among different ethnic groups within countries. Such differences are determined by both ethnic-cultural factors as well as socio-economic ones. The present paper uses the data from the 1991 Household Socioeconomic Characteristics to examine marriage patterns among ethnic groups in Iran, to identify the impact of ethnicity on these patterns. The results indicate that there are distinct marriage patterns among
ethnic groups in Iran. Various analyses also show that after
controlling socio-economic and demographic factors, ethnic differences in marriage patterns remain in the model. In other words, ethnicity has an independent role in the explanation of ethnic differentials in marriage patterns. The result of research shows that though ethnic norms and values are important and influensive in patterns of marriage but some other factors such as modernization and socio-economic determinants have also been important, too. Anthropological-demographic studies using qualitative methods can provide a deeper understanding on the impacts of ethnic norms, values and practices on marriage patterns and family in Iran.