Gratitude was examined among 154 students to identify benefits from its experience and expression. Students completed measures of subjective well-being, social support, prosocial behavior, and physical symptoms. Positive associations were found between gratitude and positive affect, global and domain specific life satisfaction, optimism, social support, and prosocial behavior; most relations remained even after controlling for positive affect. Gratitude demonstrated a negative relation with physical symptoms, but not with negative affect. Relational fulfillment mediated the relation between gratitude and physical symptoms. Gratitude demonstrated strong relations with the following positive affects: proud, hopeful, inspired, forgiving, and excited. The relation between gratitude and family support was moderated by gender, indicating that boys, compared with girls, appear to derive more social benefits from gratitude. Strengths, limitations, and implications are discussed. (Contains 2 figures and 5 tables.)