Using a social cognitive theory framework, we examined the effects of career outcome expectations (COE) and aspiration to enter a science, technology, or math (STM) career on post-secondary academic motivation. Data were collected online from a sample of 380 post-secondary students in Canada and the United States. Analysis of covariance revealed that, compared to other post-secondary students, those with high COE and STM to be more intrinsically and extrinsically motivated in terms of their academics. Overall, the results suggested that expanding students' expectations of a successful career outcome and promoting interest in STM occupations may benefit their academic motivation. Limitations and implications are discussed. (Contains 5 tables.)