Cinthia \ci(n)-thia\ as a girl's name is a variant of Cynthia (Greek) and Hyacinth (Greek), and the meaning of Cinthia is "from Mount Kynthos". See also Tia.

The baby name Cinthia sounds like Cinthie and Cintha. Other similar baby names are Cintia, Anthia, Cindia, Synthia, Kynthia, Cyntia, Cynthya, Cynthie, Cynthea, Cinzia, Cinthy, Janthia, Ianthia, Panthia and Xanthia.