Dellta \d(e)-ll-ta\ as a girl's name is a variant of Delta (Greek). See for meaning of Dellta.
The baby name Dellta sounds like Dalit and Talita. Other similar baby names are Della, Delly, Delli, Delle, Dell, Dellina, Delina, Dilla, Dela, Allta, Delia, Belita, Bellita, Melita, Dalla, Denita, Delisa, Delena, Delara, Delana, Delya, Deelia, Dellis, Deliza, Delila, Delma, Delora, Delpha, Delfa, Detta, Diella, Felita, Kellda, Melyta, Vellda, Wellda and Zellda.