'''Atthis''' can be:
*Atthis (mythology), in Greek myth, the daughter of Cranaus *''Atthis'' (plural: ''Atthides''), the traditional title for ancient historical works on Athenian history, written by an atthidographer *A woman mentioned in love poetry by Sappho *''Atthis'' (bird) in a genus in the hummingbird family *Atthis (Obernewtyn character) in the Obernewtyn Chronicles, by Isobelle Carmody *8975 Atthis, an asteroid {{disambig}}