This list of marine gastropods of South Africa attempts to list all of the sea snails and sea slugs of South Africa, in other words the marine gastropod molluscs of that area. This list is a sub-list of the List of marine molluscs of South Africa.

Gastropoda

Marine gastropods in South Africa include:

Patellogastropoda

Patellidae - True limpets Lottiidae - True limpets

Vetigastropoda

Pleurotomariidae Haliotidae - Abalone Fissurellidae - Keyhole limpets Calliostomatidae Trochidae Turbinidae - Turban shells Phasianellidae

Neritimorpha

Neritidae - Nerites

Caenogastropoda

Calyptraeidae - Slipper limpets Hipponicidae - Hoof limpets Littorinidae Assimineidae Vermetidae - Worm shells Turritellidae Potamididae Cerithiidae Xenophoridae Turridae Cypraeidae - True cowries Ovulidae Velutinidae Triviidae - Trivia Naticidae - Necklace shells Tonnidae - Tonninae Tonnidae - Cassinae - Helmet shells Janthinidae - Violet shells Bursidae Ranellidae Muricidae Buccinidae Buccinidae - Photinae Fasciolariidae Mitridae - Mitres Strombidae - Strombs Aporrhaidae - pelican foot shells Nassariidae Dogwhelks Plough shells Olividae - Olive shells Marginellidae - Marginellas Conidae - Cone shells Cancellariidae

Heterobranchia — Heterobranch gastropods

See article List of marine heterobranch gastropods of South Africa