Er

Er may refer to:

the chemical element erbium, commonly abbreviated Er
er, a letter in the Cyrillic alphabet
Er, the eldest son of Judah
Emergency room in medicine
ER, a television show set primarily in an emergency room

This is a disambiguation page; that is, one that points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page.