Gussie \g(us)-sie\ as a boy's name (also used as girl's name Gussie), is a variant of Angus (Celtic), Augustus (Latin) and Gustave (Scandinavian), and the meaning of Gussie is "one choice; great, magnificient; royal staff; staff of the gods".
The baby name Gussie sounds like Guss, Gus, Guus, Casshe, Cassio and Kasie. Other similar baby names are Jessie, Massie and Ossie.