A loop identity α = ß is of Bol-Moufang type if the same 3 variables appear on both sides of the equal sign in the same order, one of the variables appears twice on both sides and the remaining two variables appear once on both sides. One can generalize this definition by allowing different variable orders on either side of the identity, e.g. ((xx)y)z = ((y(xz)). There are 1215 nontrivial identities of this type. Loop varieties axiomatized by a single identity of this type are said to be of generalized Bol-Moufang type. We show that there are 48 such varieties: the 14 varieties of Bol-Moufang type [13], the 6 varieties of commutative Bol-Moufang type, and 28 new varieties.