Contemporary criminological literature seldom studies important ethnic subgroup differences in crime and delinquency among Hispanic/Latino youth. Therefore, their risk for crime and delinquency is poorly understood in light of the enormous ethnic and generational mixture experiences within of experiences within the Hispanic/Latino population in the United States. Using social control theory and cultural evaluations of familism, this thesis examines dissimilarities in the risk for crime and delinquency, in addition to its relations with family unity, parental engagement, youth independence, and family structure among second generation Mexicans (n = 876) and second generation Cubans (n = 525) using data from the Children of Immigrants Longitudinal Study (CILS) 1991-2006 (Portes and Rumbaut). The results concluded that second generation Cubans who obtained government assistance were more likely to engage in crime than second generation Mexicans. Consistent with social control theory, a major finding in this thesis is that presence of a family member who is involved in criminal activity increased crime within the sample of second generation Mexicans and second generation Cubans. Furthermore, in households less than five, second generation Cubans who have a delinquent family member were more likely than second generation Mexicans who have a delinquent family member to report criminal involvement, while in households greater than five, second generation Mexicans who have a delinquent family member were more likely than second generation Cubans who have a delinquent family member to report criminal involvement.