- Conus blatteus Shikama, 1979
- Conus boavistensis Rolán & F.Fernandes, 1990
- Conus bocki G.B.Sowerby Iii, 1881
- Conus boeticus Reeve, 1844
- Conus bondarevi Röckel & G.Raybaudi Massilia, 1992
- Conus bonfigliolii (Bozzetti, 2010)
- Conus borgesi Trovão, 1979
- Conus boui da Motta, 1988
- Conus boutetorum Richard & Rabiller, 2013
- Conus brettinghami Coomans, Moolenbeek & Wils, 1982
- Conus brianhayesi Korn, 2001
- Conus broderipii Reeve, 1844
- Conus bruguieresi Kiener, 1846
- Conus brunneobandatus Petuch, 1992
- Conus brunneus W.Wood, 1828
- Conus bruuni Powell, 1958
- Conus bulbus Reeve, 1843
- Conus bullatus Linnaeus, 1758
- Conus burryae Clench, 1942
- Conus byssinus (Röding, 1798)
- Conus californicus Hinds, 1844
- Conus cancellatus capricorni Van Mol, Tursch & Kempf, 1967
- Conus cancellatus finkli Petuch, 1987
- Conus cancellatus Hwass, 1792
- Conus canonicus Hwass, 1792
- Conus capitanellus Fulton, 1938
- Conus capitaneus Linnaeus, 1758
- Conus capreolus Röckel, 1985
- Conus caracteristicus Fischer von Waldheim, 1807
- Conus carcellesi Martins, 1945
- Conus cardinalis Hwass, 1792
- Conus cargilei Coltro, 2004
- Conus carioca Petuch, 1986
- Conus carnalis G.B.Sowerby Iii, 1879
- Conus catus Hwass, 1792
- Conus cebuensis Wils, 1990
- Conus cedonulli Linnaeus, 1767
- Conus ceruttii Cargile, 1997
- Conus cervus Lamarck, 1822
- Conus chaldaeus (Röding, 1798)
- Conus chiangi (Azuma, 1972)
- Conus chiapponorum Lorenz, 2004
- Conus chytreus Tryon, 1884
- Conus ciderryi da Motta, 1985
- Conus cinereus Hwass, 1792
- Conus cingulatus Lamarck, 1810
- Conus circumactus Iredale, 1929
- Conus circumcisus Born, 1778
- Conus clarus E.A.Smith, 1881
- Conus clerii Reeve, 1844