Lissie \l(is)-sie\ as a girl's name is a variant of Alyssa (Greek), Elissa (Greek) and Elizabeth (Hebrew), and the meaning of Lissie is "rational; from the blessed isles; God's promise; God is my oath".
The baby name Lissie sounds like Lyssie, Lissi and Lassie. Other similar baby names are Sissie, Cissie, Kissie, Linsie and Missie.