An area that has been largely overlooked in the acculturation literature is acculturation that occurs before migration. Therefore, the goal of our study was to develop a measure of pre-migration acculturation that would assess relevant behaviors and anticipations developed in one’s country of origin before migration. Seventy-four university students who migrated to the United States of America at the age of 10 or older completed an online survey. The results revealed that both pre-migration anticipations and pre-migration behaviors demonstrated good Cronbach’s alphas, providing preliminary evidence of reliability. Pre-migration anticipations and pre-migration behaviors were moderately correlated, providing preliminary evidence of construct validity. Both pre-migration anticipations and pre-migration behaviors predicted post-migration acculturation to the United States (via a regression analysis), providing preliminary evidence of predictive validity.