Charissa \ch(a)-rissa, char(is)-sa\ as a girl's name is of Greek origin, and the meaning of Charissa is "grace". Modern elaboration of Kharissa, perhaps influenced by %1.
For more information, see also related names Carissa, Charis and Charity.
Baby names that sound like Charissa are Charisse, Charisa and Chrissa. Other similar baby names are Charista, Charisha, Charisma and Sharissa.