The Collaborative International Dictionary of English v.0.48:
Fetichist \Fe"tich*ist\, Fetishist \Fe"tish*ist\, n. A believer in fetiches. [1913 Webster] He was by nature a fetichist. --H. Holbeach. FetichisticWordNet (r) 3.0 (2006):
fetishist n 1: one who engages in fetishism (especially of a sexual nature)