The main purpose of this study is to predict the impact of cultural values and life styles on impulse buying behavior of Pakistani customers. Survey methodology was used to collect the data by adopting convenient sampling technique. An empirical method was used to analyze the data. The T-test indicates that gender role is the only one variable of cultural values and life style of Pakistani customers where significant difference exists between male and female customers while making impulse buying behavior. Correlation test is used to analyze the relationship among the variables of cultural values and life style; the results suggest that there exist significant relation among all the variables of cultural values and life styles. The results also suggest that impulse buying behavior is predicted by security, life satisfaction, gender role, financial satisfaction, in group contact and life style variables of cultural values and lifestyles of Pakistani consumers. Key words: cultural values, buying behavior, life style, Pakistani Customers.