Meaning & Origin
A male given name from Italian.
Elmo is a boy's and girl's baby name of Italian origin, a short form of Erasmus or a Latinized form of the Germanic Helm, meaning 'helmet, protection.' Saint Elmo is the patron saint of sailors, and the electrical phenomenon known as St. Elmo's fire is named for him.
Today Elmo is instantly recognized as the beloved red Muppet character from Sesame Street, whose enthusiastic, childlike personality has made the name warmly familiar to generations of children. It's a name with both medieval saintly history and irresistible modern charm.