The academic literature on management consulting raises many questions about the ethics of management consulting. The uncertain, emergent, and often socially constructed nature of management consultancy knowledge limits the scope both for regulating the industry in the manner of the established professions, and for evaluating management consultants’ work objectively. The character of management consultants is therefore a central issue in how far clients and other stakeholders can trust them. This paper considers three questions, using Aristotle’sNicomachean Ethicsas a guide. These are, (...) first, ‘What is the function of a management consultant?’, second, ‘How should a management consultant act in order to be a good management consultant?’, and third, ‘Where does the boundary lie between the ethical responsibilities of the management consultant and those of the client and other stakeholders?’ Aristotelian virtue ethics are valuable in answering these questions. Their focus on character is well suited to the distinct ethical problems of management consulting. Aristotle’s overarching concern with human flourishing, and an ethically balanced approach towards benefiting from the good things to which a virtuous person may aspire, has more promise as an influence on consultants’ behaviour than the lists of prohibitions that typify codes of ethical practice in the industry. Aristotle’s call for leaders to habituate their people to ethical behaviour should be heard by the leaders of management consultancy firms. In accordance with Aristotle’s philosophy, this paper proposes a positive target at which management consultants can aim in shooting for ethical practice. (shrink)