Cathi \c(a)-thi\ as a girl's name is a variant of Catherine (Greek) and Cathy (Greek), and the meaning of Cathi is "pure".

The baby name Cathi sounds like Kathi, Cati, Cathie, Cathe, Catha, Cath and Cathia. Other similar baby names are Casha, Agathi, Cadi, Cai, Caiti, Calli, Cali, Caltha, Cami, Cammi, Cari, Carri, Cazzi, Caysi, Cayci, Casi, Caisi, Caci, Cassi, Kati, Kathy, Kathie, Katha, Caty, Cato, Catie, Catia, Cathye, Cathee, Catey, Cate, Cat, Kathe, Catee, Kathia, Matha, Mathia and Ruthi.