Meaning and name origin
Annais \a(n)-nais\ as a girl's name is of Greek origin, and the meaning of Annais is "pure, holy". Annais is a variant of Agnes (Greek): Latin form of the Greek name Hagnes, from the feminine form of "hagnos".
Annais is not a popular first name for females and an equally uncommon surname or last name for all people (2000 U.S. Census).
Annais is also pronounced similarly to Anna, Annah, Anni and Annie▼. Other suggested similar baby names are Anis, Annaka, Annes, Annis▼, Annisa, Annise, Annus and Annys. These names tend to be more commonly used than Annais.