LU TP 94-7 May 1994 Heavy Quark Pair Multiplicity in e^+e^- Events M.H. Seymour We calculate the multiplicity of heavy quark pairs in e^+e^- annihilation events, which arises from perturbative gluon splitting. Our result is exact to leading order in \alpha_s, and resums large leading and next-to-leading logarithmic terms to all orders. We compare our results with Monte Carlo models, and find reasonable agreement with those based on the parton shower approach.