Conus medoci Lorenz, 2004
Conus medvedevi (Monteiro, Afonso, Tenorio, Rosado & Pirinhas, 2014)
Conus meleus (G. B. Sowerby III, 1913)
Conus melissae Tenorio, Afonso & Rolán, 2008
Conus melvilli G. B. Sowerby III, 1879
Conus mercator lamarckii Kiener, 1845
Conus mercator Linnaeus, 1758
Conus merletti Mayissian, 1974
Conus messiasi Rolan & Fernandes, 1990
Conus metcalfii cernohorskyi da Motta, 1983
Conus metcalfii Reeve, 1843
Conus michelcharlesi (Monnier, Limpalaër & Prugnaud, 2020)
Conus micropunctatus Rolan & Rockel, 2000
Conus miguelfiaderoi (Cossignani & Fiadeiro, 2015)
Conus miles Linnaeus, 1758
Conus milesi E.A.Smith, 1887
Conus miliaris Hwass, 1792
Conus miliaris pascuensis Rehder, 1980
Conus milneedwardsi clytospira Melvill & Standen, 1899
Conus milneedwardsi Jousseaume, 1894
Conus milneedwardsi lemuriensis Wils & Delsaerdt, 1989
Conus minamiae (Lum, 2023)
Conus mindanus bermudensis Clench, 1974
Conus mindanus Hwass, 1792
Conus mindanus karinae Usticke, 1968
Conus mindanus lymani Clench, 1942
Conus miniexcelsus B. M. Olivera & J. S. Biggs, 2010
Conus minimus Cossignani & Fiadeiro, 2015
Conus minnamurra (Garrard, 1961)
Conus miruchae Rockel, Rolan & Monteiro, 1980
Conus mitratus Hwass, 1792
Conus moluccensis Kuster, 1838
Conus monachus Linnaeus, 1758
Conus moncuri Filmer, 2005
Conus monicae (Petuch & Berschauer, 2015)
Conus monile Hwass, 1792
Conus monilifer (Sowerby, 1833)
Conus montillai Röckel, 1985
Conus moolenbeeki Filmer, 2011
Conus mordeirae Rolan & Trovao, 1990
Conus moreleti Crosse, 1858
Conus morrisoni G. Raybaudi Massilia, 1991
Conus morroensis Cossignani & Fiadeiro, 2014
Conus moylani Delsaerdt, 2000
Conus mozambicus altispiratus G. B. Sowerby II, 1873
Conus mozambicus Hwass, 1789
Conus mozambicus lautus Reeve, 1844
Conus mozambicus macei Crosse, 1865
Conus mpenjatiensis (S. G. Veldsman, 2016)
Conus mucronatus Reeve, 1843
Conus mulderi Fulton, 1936
Conus muriculatus G. B. Sowerby I, 1833
Conus mus Hwass, 1792
Conus musicus Hwass, 1792
Conus musicus mighelsi Kiener, 1845
Conus mustelinus Hwass, 1792
Conus mustelinus melinus Shikama, 1964
Conus namocanus Hwass, 1792
Conus nanus G. B. Sowerby I, 1833
Conus naranjus Trovao, 1975
Conus natalaurantius (S. G. Veldsman, 2013)
Conus natalis G. B. Sowerby II, 1858
Conus natalis gilchristi G. B. Sowerby III, 1903
Conus navarroi Rolan, 1986
Conus negroides Kaicher, 1977
Conus nelsonandradoi (Cossignani & Fiadeiro, 2015)
Conus neobrasiliensis (A. Monteiro, Crabos & D. Monteiro, 2025)
Conus neocaledonicus (Tenorio, M.J. & M. Castelin, 2016)
Conus neoguttatus da Motta, 1991
Conus neotorquatus da Motta, 1985
Conus neptunus Reeve, 1843
Conus nereis Petuch, 1979
Conus nicobaricus Hwass, 1792
Conus niederhoeferi (Monnier, Limpalaër & Lorenz, 2012)
Conus nielsenae Marsh, 1962
Conus nigromaculatus Rockel & Moolenbeek, 1992
Conus nigropunctatus elatensis Wils, 1971
Conus nigropunctatus G. B. Sowerby II, 1858
Conus nigropunctatus peledi Wils, 1971
Conus nimbosus Hwass, 1792
Conus nimbosus nanoclarus Bozzetti, 2017
Conus nobilis abbai Poppe & Tagaro, 2011
Conus nobilis nobilis Linnaeus, 1758
Conus nobrei Trovao, 1975
Conus nocturnus (Lightfoot, 1786)
Conus nocturnus deburghiae (G. B. Sowerby II, 1857)
Conus nodulosus G. B. Sowerby II, 1864
Conus norai da Motta & G.Raybaudi, 1992
