Jess \j(e)-ss\ as a girl's name (also used as boy's name Jess), is a variant of Jane (Hebrew), Jasmine (Old French, Persian), Jessica (Hebrew) and Jessie (Hebrew), and the meaning of Jess is "God is gracious; jasmine; He sees".
The baby name Jess sounds like Jessy, Jesse, Jessa, Jessi and Joss. Other similar baby names are Bess and Tess.