The authors introduced and studied fuzzy C -closed sets in fuzzy topological space where C : [0, 1]? [0, 1] is a complement function. Let X be a non empty set. For any fuzzy subset ? of X, the complement C ? of ? is defined to be C ? (x)= C (? (x)) for every x?X. This C is called a complement function and C ? is called the complement of ? with respect to C. Using this,
Keywords: Fuzzy C -pre open, fuzzy C -pre closed, Fuzzy C -semi open, Fuzzy C -semi closed, fuzzy C -semi-pre open, fuzzy C - semi-pre closed, fuzzy C -semi-pre continuity and fuzzy topology.