The growing importance of metacognition has opened a broad avenue of research in decision-making literature. Nevertheless, most studies on metacognition have primarily focused on decision-making ability or processes, largely ignoring the role of individual differences. The present study aims at addressing this gap by examining the role of metacognition (knowledge about cognition and regulation of cognition) on the various decision-making styles: rational, intuitive, dependent, avoidant and spontaneous. Data collected from 139 MBA students enumerate the importance of knowledge about cognition and regulation of cognition in explaining the decision-making styles. While knowledge about cognition was positively associated with intuitive and spontaneous decision-making styles, regulation of cognition emerged to be positively related to rational decision-making style. Both knowledge and regulation of cognition could explain these decision-making styles over and above the demographic variables of age, gender and work experience. The maladaptive decision styles of dependent and avoidant decision-making could neither be explained by knowledge about cognition nor regulation of cognition.