In this paper we offer a comprehensive and unified approach to the study of existence theorems for fuzzy functional equations of the form f(x) = h(x, f(s(x))). Though this equation in the classical setting has been studied extensively in the literature there has not been much of a study of fuzzy functional equations. We employ the tools of analysis as available in En, the space of fuzzy numbers (which are normalized, fuzzy convex, upper semicontinuous and compactly supported). © 1994.