Annthea \a-nn-thea\ as a girl's name is a variant of Anthea (Greek), and the meaning of Annthea is "flowery".

The baby name Annthea sounds like Anthia, Antheya, Antheia and Anthe. Other similar baby names are Alethea, Alithea, Alathea, Althea, Anuhea, Cynthea, Panthea and Penthea.