Conilithes is an extinct genus of sea snails, marine gastropod mollusks in the family Conidae, the cone snails.

[1] This genus is known in the fossil record from the Lutetian (Eocene) of France, the United Kingdom and New Zealand to the Piacenzian (Pliocene) of Italy (age range: 48.6 to 2.588 million years ago).

[2] Conolithus (Hermannsen, 1846) is an "invalid emendation" of Conilithes (Swainson, 1840), in the terminology introduced in the Copenhagen Decisions on Zoological Nomenclature (London, 1953: 43).

Conilithes Swainson (spelled Conolithes by Wenz) is a junior homonym of Conilites (Schloth, 1820) (spelled Conolites by Wenz)[3] The specimen indicated as Conus deperditus by Suter in 1917 was referred to as Conospira suteri by Cossmann in 1918 and as Conospira fracta by Finlay in 1924.

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