Extant research on greed has focused on situational determinants of greedy behavior, ignoring individual differences in greed. Defining greed as insatiability, the present paper introduces a six item Dispositional Greed Scale. Two studies demonstrate convergent and discriminant validity and test–retest reliability. Specifically, they demonstrate that greed is related to but different from materialism. It is also positively related to entitlement, egoism, social comparison, envy, competition and productivity orientation and negatively related to impression management and satisfaction with life. The Dispositional Greed Scale enables researchers to disentangle the impact of personality from that of the situation on greedy behavior.