• Leptonia (E.M. Fries) P. Kummer, 1871 accepted as Entoloma (E.M. Fries ex Rabenhorst) Kummer, 1871 [Family: Entolomataceae, Phylum: Basidiomycota]
• Leptonia Sharp, 1883 [Family: Staphylinidae, Phylum: Arthropoda]
• Leptonia Singh, Tewari & Gupta, 1979 † (uncertain) [Family: , Phylum: Acritarcha]
• Leptonia aethiops (Scop.) Gillet, 1874 accepted as Entoloma aethiops (Scop.) G. Stev., 1962
• Leptonia allosperma (Noordel.) P.D. Orton, 1991 accepted as Entoloma allospermum Noordel., 1985
• Leptonia anatina (Lasch) P. Kumm., 1871 accepted as Entoloma anatinum (Lasch) Donk, 1949
• Leptonia anatina (Lasch) Quél. accepted as Entoloma anatinum (Lasch) Donk, 1949
• Leptonia andrianae Bres., 1920 accepted as Entoloma rufocarneum (Berk.) Noordel., 1985
• Leptonia asprella (Fr.) P. Kumm., 1871 accepted as Entoloma asprellum (Fr.) Fayod, 1889
• Leptonia atrocoerulea (Noordel.) P.D. Orton, 1991 accepted as Entoloma atrocoeruleum Noordel., 1987
• Leptonia atromarginata (Romagn. & J. Favre) Konrad & Maubl., 1948 accepted as Entoloma atromarginatum (Romagn. & J. Favre) Zschiesch., 1984
• Leptonia babingtonii (A. Bloxam) P.D. Orton, 1960 accepted as Entoloma babingtonii (A. Bloxam) Hesler, 1967
• Leptonia babingtonii sensu NCL (1960) accepted as Entoloma dysthales (Peck) Sacc., 1891
• Leptonia caerulea P.D. Orton, 1960 accepted as Entoloma caeruleum (P.D. Orton) Noordel., 1982
• Leptonia caeruleoflocculosa (Noordel.) P.D. Orton, 1991 accepted as Entoloma caeruleoflocculosum Noordel., 1985
• Leptonia caesiocincta (Kühner) P.D. Orton, 1960 accepted as Entoloma caesiocinctum (Kühner) Noordel., 1982
• Leptonia carneogrisea (Berk. & Broome) P.D. Orton, 1991 accepted as Entoloma carneogriseum (Berk. & Broome) Noordel., 1987
• Leptonia catalaunica Singer, 1936 accepted as Entoloma catalaunicum (Singer) Noordel., 1982
• Leptonia cephalotricha P.D. Orton, 1960 accepted as Entoloma cephalotrichum (P.D. Orton) Noordel., 1979
• Leptonia chalybaea (Pers.) P. Kumm., 1871 (unaccepted)
• Leptonia chloropolia (Fr.) Gillet, 1876 accepted as Entoloma chloropolium (Fr.) M.M. Moser, 1986
• Leptonia cinerascens Velen., 1921 accepted as Entoloma favrei Noordel., 1982
• Leptonia coelestina (Fr.) P.D. Orton, 1960 accepted as Entoloma coelestinum (Fr.) Hesler, 1967
• Leptonia corvina (Kühner) P.D. Orton, 1960 accepted as Entoloma corvinum (Kühner) Noordel., 1982
• Leptonia cruentata (Quél.) P.D. Orton, 1991 accepted as Entoloma cruentatum (Quél.) Noordel., 1984
• Leptonia cyaneoviridescens P.D. Orton, 1960 accepted as Entoloma cyaneoviridescens (P.D. Orton) Noordel., 1982
• Leptonia cyanula (Lasch) Sacc., 1887 accepted as Entoloma cyanulum (Lasch) Noordel., 1984
• Leptonia dichroa (Pers.) P.D. Orton, 1991 accepted as Entoloma dichroum (Pers.) P. Kumm., 1871
• Leptonia euchlora (Lasch) Quél., 1871 accepted as Entoloma incanum (Fr.) Hesler, 1967
• Leptonia euchroa (Pers.) Gillet, 1871 accepted as Entoloma euchroum (Pers.) Donk, 1949
• Leptonia exilis (Fr.) P.D. Orton, 1960 accepted as Entoloma exile (Fr.) Hesler, 1967
• Leptonia formosa (Fr.) Gillet, 1876 accepted as Entoloma formosum (Fr.) Noordel., 1985
• Leptonia fulva P.D. Orton, 1960 accepted as Entoloma formosum (Fr.) Noordel., 1985
• Leptonia fulvostrigosa (Berk. & Broome) P.D. Orton, 1960 accepted as Entoloma araneosum (Quél.) M.M. Moser, 1978
• Leptonia griseocyanea (Fr.) P.D. Orton, 1960 accepted as Entoloma griseocyaneum (Fr.) P. Kumm., 1871
• Leptonia griseorubella (Lasch) P.D. Orton, 1960 accepted as Entoloma griseorubellum (Lasch) Kalamees & Urbonas, 1986
• Leptonia griseorubida (Kühner ex Noordel.) P.D. Orton, 1991 accepted as Entoloma griseorubidum Kühner ex Noordel., 1984
• Leptonia hispidula (M. Lange) P.D. Orton, 1991 accepted as Entoloma hispidulum (M. Lange) Noordel., 1982
• Leptonia huijsmanii (Noordel.) P.D. Orton, 1991 accepted as Entoloma huijsmanii Noordel., 1984
• Leptonia incana (Fr.) Gillet, 1876 accepted as Entoloma incanum (Fr.) Hesler, 1967
• Leptonia incanus (Fr.) Gillet, 1877 accepted as Entoloma incanum (Fr.) Hesler, 1967
• Leptonia incarnatofuscescens (Britzelm.) Sacc., 1895 accepted as Entoloma incarnatofuscescens (Britzelm.) Noordel., 1985
• Leptonia induta (Boud.) P.D. Orton, 1960 accepted as Entoloma indutum Boud., 1900
• Leptonia indutoides P.D. Orton, 1960 accepted as Entoloma indutoides (P.D. Orton) Noordel., 1984
• Leptonia inocybeoides P.D. Orton, 1960 accepted as Entoloma hispidulum (M. Lange) Noordel., 1982
• Leptonia insidiosa (Noordel.) P.D. Orton, 1991 accepted as Entoloma insidiosum Noordel., 1987
• Leptonia jubata (Fr.) Largent, 1974 accepted as Entoloma jubatum (Fr.) P. Karst., 1879
• Leptonia kervernii De Guern., 1876 accepted as Entoloma kervernii (De Guern.) M.M. Moser, 1978
• Leptonia lampropus (Fr.) Quél., 1872 accepted as Entoloma lampropus (Fr.) Hesler, 1967
• Leptonia lampropus sensu NCL (1960), non Fr. accepted as Entoloma sodale Kühner & Romagn. ex Noordel., 1982
• Leptonia lazulina (Fr.) Quél., 1872 (unaccepted)
• Leptonia leptonipes (Kühner & Romagn.) P.D. Orton, 1960 accepted as Entoloma incarnatofuscescens (Britzelm.) Noordel., 1985
• Leptonia lividocyanula (Kühner) P.D. Orton, 1960 accepted as Entoloma lividocyanulum (Kühner) M.M. Moser, 1986
• Leptonia longistriata Peck, 1911 accepted as Entoloma longistriatum (Peck) Noordel., 1988
• Leptonia majuscula (Kühner & Romagn.) P.D. Orton, 1960 accepted as Entoloma longistriatum (Peck) Noordel., 1988
• Leptonia mougeotii (Fr.) P.D. Orton, 1960 accepted as Entoloma mougeotii (Fr.) Hesler, 1967
• Leptonia nigroviolacea P.D. Orton, 1960 accepted as Entoloma nigroviolaceum (P.D. Orton) Hesler, 1967
• Leptonia parasitica Quél., 1878 accepted as Entoloma parasiticum (Quél.) Kreisel, 1984
• Leptonia pernitrosa P.D. Orton, 1960 accepted as Entoloma politum (Pers.) Donk, 1979
• Leptonia placida (Fr.) P. Karst., 1871 accepted as Entoloma placidum (Fr.) Zerov, 1979
• Leptonia poliopus (Romagn.) P.D. Orton, 1991 accepted as Entoloma poliopus (Romagn.) Noordel., 1979
• Leptonia polita (Pers.) P.D. Orton, 1960 accepted as Entoloma politum (Pers.) Donk, 1979
• Leptonia porphyrophaea (Fr.) Largent, 1977 accepted as Entoloma porphyrophaeum (Fr.) P. Karst., 1879
• Leptonia pulverea (Rea) P.D. Orton, 1960 accepted as Entoloma pulvereum Rea, 1907
• Leptonia pyrospila Romagn. ex P.D. Orton, 1960 accepted as Entoloma exile (Fr.) Hesler, 1967
• Leptonia queletii Boud., 1877 accepted as Entoloma queletii (Boud.) Noordel., 1983
• Leptonia querquedula (Romagn.) P.D. Orton, 1976 accepted as Entoloma querquedula (Romagn.) Noordel., 1982
• Leptonia reae Maire, 1910 accepted as Entoloma reae (Maire) Noordel., 1992
• Leptonia rhombispora Kühner & Boursier, 1929 accepted as Entoloma rhombisporum (Kühner & Boursier) E. Horak, 1976
• Leptonia rosea Longyear, 1919 accepted as Entoloma roseum (Longyear) Hesler, 1967
• Leptonia rufocarnea (Berk.) P.D. Orton, 1991 accepted as Entoloma rufocarneum (Berk.) Noordel., 1985
• Leptonia sarcita (Fr.) P. Karst., 1879 accepted as Entoloma sarcitum (Fr.) Noordel., 1981
• Leptonia sarcita sensu A.A. Pearson accepted as Entoloma longistriatum (Peck) Noordel., 1988
• Leptonia sarcitula Kühner & Romagn. ex P.D. Orton, 1960 accepted as Entoloma longistriatum (Peck) Noordel., 1988
• Leptonia scabrosa (Fr.) Sacc., 1887 accepted as Entoloma scabrosum (Fr.) Noordel., 1985
• Leptonia sericella (Fr.) Barbier, 1911 accepted as Entoloma sericellum (Fr.) P. Kumm., 1871
• Leptonia sericeoides (J.E. Lange) P.D. Orton, 1960 accepted as Entoloma sericeoides (J.E. Lange) Noordel., 1980
• Leptonia serrulata (Pers.) P. Kumm., 1871 accepted as Entoloma serrulatum (Pers.) Hesler, 1967
• Leptonia seticeps G.F. Atk., 1902 accepted as Pluteus podospileus Sacc. & Cub., 1887
• Leptonia sodalis (Kühner & Romagn.) P.D. Orton, 1991 accepted as Entoloma sodale Kühner & Romagn. ex Noordel., 1982
• Leptonia solstitialis (Fr.) Gillet, 1874 accepted as Entoloma solstitiale (Fr.) Noordel., 1980
• Leptonia spurceifolia Watling ined. accepted as Entoloma longistriatum (Peck) Noordel., 1988
• Leptonia strigosissima (Rea) P.D. Orton, 1960 accepted as Entoloma strigosissimum (Rea) Noordel., 1979
• Leptonia subcyanula (Fr.) P. Kumm., 1871
• Leptonia tjallingiorum (Noordel.) P.D. Orton, 1991 accepted as Entoloma tjallingiorum Noordel., 1982
• Leptonia turci Bres., 1881 accepted as Entoloma turci (Bres.) M.M. Moser, 1978
• Leptonia wynnei (Berk. & Broome) P.D. Orton, 1991 accepted as Entoloma wynnei (Berk. & Broome) Sacc., 1887
• Leptonia xanthochroa P.D. Orton, 1964 accepted as Entoloma xanthochroum (P.D. Orton) Noordel., 1985