4 Elmo names that mean elmo for boys, listing Elmo baby names 1-4. Elmo is a popular name. Anselm, Castor and Erasmus are uncommon names. View Elmo baby names for name meanings, or search other baby names.
Anselm ... [Elmo] 
Castor ... appearing to them in Saint Elmo's fire. 
Elmo ... The electrical phenomenon sometimes seen in the rigging of ships at sea is called Saint Elmo's fire ... 
Erasmus ... Saint Erasmus was a saint popularly known as Saint Elmo ...