Althaia \a-lthaia, al-thaia\ as a girl's name is a variant of Althea (Greek), and the meaning of Althaia is "healing herb".

The baby name Althaia sounds like Althia and Althaea. Other similar baby names are Alaia, Alithia, Alethia, Alathia, Altha, Althelia, Altheda, Anthia, Antheia and Artheia.