The non-marine molluscs of Japan are a part of the molluscan fauna of Japan (wildlife of Japan).
A number of species of non-marine molluscs are found in the wild in Japan.
Extinct gastropods in Japan include: Vitrinula chaunax, Vitrinula chichijimana, Vitrinula hahajimana.
Pomatiopsidae Thiaridae Acroloxidae Land gastropods in Japan include: Cyclophoridae Helicinidae Achatinellidae Enidae Vertiginidae Ariophantidae Camaenidae Diapheridae "Hothouse aliens" in Japan include: Lists of molluscs of surrounding countries: