Jennessa \j(en)-nessa, jenn(es)-sa\ as a girl's name is a variant of Jenny (English). See for meaning of Jennessa.
The baby name Jennessa sounds like Jannessa and Jenessa. Other similar baby names are Vennessa, Genessa, Janessa, Jeressa, Jennetta, Jinessa, Jenneva, Jonessa, Vonnessa, Vennesa, Venessa and Vannessa.