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We study the nine possible rare charm meson decays D->Pl^+l^-(P=pi,K,eta,eta') using the Heavy Meson Chiral Lagrangians and find them to bedominated by the long distance contributions. The decay D^+ -> pi^+l^+l^- withthe branching ratio 1*10^(-6) is expected to have the best chances for an earlyexperimental discovery. The short distance contribution in the five Cabibbosuppressed channels arises via the c->ul^+l^- transition; we find that thiscontribution is detectable only in the D->pi l^+l^- decay, where it dominatesthe differential spectrum at high-q^2. The general Minimal SupersymmetricStandard Model can enhance the c->ul^+l^- rate by up to an order of magnitude;its effect on the D->Pl^+l^- rates is small since the c->ul^+l^- enhancement issizable in low-q^2 region, which is inhibited in the hadronic decay.Comment: 17 page

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

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Rare charm meson decaysD→Pl+l−and