Em \em\ as a girl's name (also used as boy's name Em), is a variant of Amelia (Latin, Old German), Emily (Latin), Emma (Old French, Old German) and Esmeralda (Spanish), and the meaning of Em is "industrious, striving; work; rival; laborious; eager; entire, universal; emerald".

The baby name Em sounds like Ema, Ama, Emmy, Amy, Ami, Ame, Emmi, Ima, Emme, Oma and Uma. Other similar baby names are El, Ena, Esme, Esma, Cam, Eve, Eva, Eda, Ede, Edy, Edi, Edma, Ela, Eir, Eli, Elma, Emer, Erma, Evy, Eba, Gem, Eman, Eyo, Kim, Kym, Mo, Mim, Pam, Sam and Tam.