Can we legitimately speak of ethics experts? Recent literature in phil
osophy and medical ethics addresses this important question but does n
ot offer a satisfactory answer. Part of the problem is the absence of
an examination of what it means to be an 'expert' in general. I theref
ore begin by reviewing my analysis of expertise which appeared earlier
in this journal. We speak of two kinds of experts: persons whose expe
rtise is in virtue of what they know ('epistemic' expertise), or what
they do ('performative' expertise). Applying this analysis to the doma
in of ethics, I argue that we may speak of ethical expertise in three
epistemic senses: a) expertise in descriptive ethics, b) expertise in
metaethics, c) expertise in normative ethics, and in a performative se
nse: d) expertise in living a good life. I conclude with a brief descr
iption of some social roles of ethics experts.