Ellsi \e-ll-si\ as a girl's name is a variant of Elizabeth (Hebrew), and the meaning of Ellsi is "God's promise; God is my oath".
The baby name Ellsi sounds like Ellsa and Ellse. Other similar baby names are Elli, Elsa, Ellie, Ella, Elish, Elis, Elle, Ellba, Ellyn, Elly, Ellin, Ellen, Eleni, Eleri, Ellga, Eli, Elidi, Elisa, Elyse, Elise, Elysia, Elysa, Elisia, Elsy, Elsie, Else, Ellyse, Ellsey, Ellsee, Ellke, Ellia, Ellee, Ellon, Ellan, Ellma, Elssa, Illsa and Kelsi.