Latinos are less likely to use mental health services compared to non-Latino whites, but little research has examined the relative contribution of acculturation and attitudes towards healthcare. In the current study, we analyze data from a nationally representative sample of Mexicans, Cubans, Puerto Ricans and non-Latino whites from the 2002-2003 Medical Expenditure Panel Survey (n = 30,234). Findings show different utilization patterns in use of specialty, non-specialty, and any type of mental healthcare across the three Latino subgroups. The predictive efficacy of acculturation variables on ethnic group differences varies by subgroup. Self-reliant attitudes towards healthcare are associated with lower use, but these attitudes do not explain the ethnic gaps in use.