This study represents the first effort to examine associations between various measures of acculturation and past 30-day secondhand smoke (SHS) exposure among Vietnamese-Americans in metro-Atlanta, one of the areas with the highest number of Vietnamese-Americans in the U.S. Survey data of 96 Vietnamese-American nonsmoking adults attending health fairs/programs hosted by community-based organizations (2017-2018) were analyzed. Acculturation-related predictors included Vancouver Acculturation Index, language fluency, years in the U.S., and area-level proportion of Asian residents. The sample was an average 37.49 years old and 65.3% female; the average number of years in the U.S. was 18.17 years. Past 30-day SHS exposure was reported by 21.9%. In multiple logistic regressions, the only variable associated with SHS exposure was the number of years living in the U.S. [OR = 0.91, CI = (0.85-0.99), p = 0.02]. Newly-immigrated Vietnamese-Americans have increased SHS exposure risk. Education about smoke-free policies and harmful effects of SHS may benefit this population.