Theba gittenbergeri (A. Puente, 1994)
Chilostoma glaciale (A.E.J. Férussac, 1821)
Hemicycla glasiana R.J. Shuttleworth, 1843
Murella globularis (J. Zeleborin R.A. Philippi, 1836)
Murella globularis ascherae (W. Kobelt, 1880)
Murella globularis conspicua (L. Benoit, 1857)
Iberus globulosus (C.R. Böttger, 1913)
Hemicycla glyceia (J.F. Mabille, 1882)
Hemicycla glyceia silensis Cavero, 1988
Helix godetiana W. Kobelt, 1878
Hemicycla gomerensis (P.M.A. Morelet, 1864)
Allognathus graellsianus (L. Pfeiffer, 1848)
Hemicycla granomalleata (T.V. Wollaston, 1878)
Theba grasseti (A. Mousson, 1872)
Superba grisea (P. Subai, 1990)
Iberus gualtieranus (C. Linnaeus, 1758)
Iberus gualtieranus angustatus E.A. Rossmässler, 1854
Iberus gualtieranus laurenti J.R. Bourguignat, 1870
Iberus gualtieranus mariae (C. Cobos, 1979)
Iberus gualtieranus minor B. Serradell, 1912
Iberus gualtieroloxanus E. Garcia San Nicolás,1957
Hemicycla guamartemes J.P.A. Grasset, 1857
Helix gussoneana L. Pfeiffer, 1848
Helix guttata E.J. Le Guillou, 1842
Assyriella guttata (G.A. Olivier, 1804)
Helix haliotidea Auct. non C. Linnaeus,1758
Liburnica harpya (P. Subai, 1995)
Helix hartungi J.A. Albers, 1852
Hemicycla hedybia (J.F. Mabille, 1882)
Thiessea heldreichi (L. Pfeiffer, 1846)
Codringtonia helenae P. Subai, 2005
Helix heliaca D'Orbigny, 1835
Josephinella hemonica (J. Thiesse, 1884)
Mesodontopsis heriacensis (FOSSIL) (Depéret, 1895 †)
Helix herza J.F. Mabille, 1889