Gratitude has mostly been explored in relation to well-being but whether it is associated with school-related outcomes such as motivation and engagement has seldom been explored. Motivation and engagement, however, are critical to students' academic success. Hence, the aim of this study was to examine how gratitude is associated with different types of academic motivation (amotivation, controlled motivation, and autonomous motivation) and engagement (cognitive, behavioural, and emotional). We recruited 1099 Chinese university students and asked them to answer questionnaires assessing their levels of gratitude, motivation, and engagement. Structural equation modelling revealed that gratitude was positively associated with controlled motivation, autonomous motivation, and academic engagement but negatively associated with amotivation. Autonomous motivation partially mediated the relationship between gratitude and academic engagement. The findings of this study elucidate the theoretical linkages among gratitude, motivation, and engagement, demonstrating the importance of gratitude for school-related outcomes.