• Conus laueri (Monnier & Limpalaër, 2013)
• Conus lecourtorum (Lorenz, 2011)
• Conus leehmani da Motta & Röckel, 1979
• Conus legatus Lamarck, 1810
• Conus lenavati da Motta & Röckel, 1982
• Conus leobottonii Lorenz, 2006
• Conus leopardus (Röding, 1798)
• Conus lienardi Bernardi & Crosse, 1861
• Conus limpusi Röckel & Korn, 1990
• Conus lineopunctatus Kaicher, 1977
• Conus Linnaeus, 1758
• Conus lischkeanus Weinkauff, 1875
• Conus litoglyphus Hwass, 1792
• Conus litteratus Linnaeus, 1758
• Conus lividus Hwass, 1792
• Conus lizardensis Crosse, 1865
• Conus locumtenens Blumenbach, 1791
• Conus lohri Kilburn, 1972
• Conus longilineus Röckel, Rolán & Monteiro, 1980
• Conus lozeti Richard, 1980
• Conus lucaya Petuch, 2000
• Conus luciae Moolenbeek, 1986
• Conus luteus G.B.Sowerby I, 1833
• Conus lynceus G.B.Sowerby II, 1858
• Conus maculospira Pilsbry, 1922
• Conus madagascariensis G.B.Sowerby II, 1858
• Conus madecassinus (Bozzetti, 2012)
• Conus magellanicus Hwass, 1792
• Conus magnificus Reeve, 1843
• Conus magus Linnaeus, 1758
• Conus maioensis Trovão, Rolán & Félix-Alves, 1990
• Conus malacanus Hwass, 1792
• Conus maldivus Hwass, 1792
• Conus mappa (Lightfoot), 1786
• Conus marchionatus Hinds, 1843
• Conus mariaodeteae (Petuch & R.F.Myers, 2014)
• Conus marielae Rehder & B.R.Wilson, 1975
• Conus marmoreus Linnaeus, 1758
• Conus martensi E.A.Smith, 1884
• Conus mcbridei Lorenz, 2005
• Conus medoci Lorenz, 2004
• Conus melvilli G.B.Sowerby Iii, 1879
• Conus mercator Linnaeus, 1758
• Conus micropunctatus Rolán & Röckel, 2000
• Conus miles Linnaeus, 1758
• Conus milesi E.A.Smith, 1887
• Conus milneedwardsi Jousseaume, 1894
• Conus miniexcelsus Olivera & Biggs, 2010
• Conus minnamurra (Garrard, 1961)
• Conus mitratus Hwass, 1792