Keith Campbell FAHA (1938 – 12 October 2024) was an Australian philosopher working in metaphysics.
With D. M. Armstrong, Campbell was one of the founders of so-called Australian materialism and, within it, of a variety of trope theory.
[citation needed] He refused, following Frank P. Ramsey, the necessity of choice between realism and nominalism in the problem of universals, because they both share "a false presupposition being that any quality or relation must be a universal" (Campbell 1991, preface).
[1] He was a senior lecturer in the "Traditional and Modern" one[2] and later became an emeritus professor in the recombined Department of Philosophy (part of the School of Philosophical and Historical Inquiry).
Campbell was elected a Fellow of the Australian Academy of the Humanities in 1977.