Elmo \e-lmo, el-mo\ as a boy's name is of Latin, Greek and Italian origin, and the meaning of Elmo is "to love; God's helmet". Italian form of Anselm and a short form of Erasmus, the name of a fourth-century bishop-martyr who is patron saint of sailors. The electrical phenomenon sometimes seen in the rigging of ships at sea is called Saint Elmo's fire. Also the name of a furry red toddler-monster on the TV series "Sesame Street".
Elmo has 1 variant form: Moe.