We report the first experimental observation of "orientational dichroism" in electron impact-induced ionization. (e,2e) experiments have been performed on pure angular momentum states 3P_3/2, m_F = +3 and m_F = -3 of the sodium atom, excited by right- and left-handed circularly polarized laser light. Our results show that the angular correlation of the final-state electron pair is strongly dependent on the m_L sublevel populated. Comparison with calculation demonstrates the dependence of the dichroism on details of the scattering dynamics.