Achatina is a genus of medium-sized to very large, air-breathing, tropical land snails, terrestrial pulmonate gastropod mollusks in the family Achatinidae.

There are some 200 species of Achatinidae in Sub-Saharan Africa. Some species are kept as terrarium animals due to their size of three inches, and colourful shells.

Snails in this genus have medium to large shells which are ovate in shape and often colourfully streaked.

Species within the genus Achatina include:

incertae sedis: