Erna
# Erna

Erna may refer to:

## People

* Erna (given name), a list of people with the name
* Jeff Erna, American drummer
* Sully Erna (born 1968), American musician and member of Godsmack
* pen name of Anna van Gogh-Kaulbach (1869-1960), Dutch writer
* Érna, or Iverni, a people of medieval Ireland

## Other uses

* Erna (mythology), a figure in Norse mythology
* Erna (moth), genus of moths in the family Erebidae
* Little Erna, the butt of Little Erna jokes popular in Hamburg
* Erna (planet), a fictional world in C. S. Friedman's Coldfire Trilogy
* Erna long-range reconnaissance group, a Finnish Army unit of Estonian volunteers which operated behind Red Army lines in World War II
* Erna Raid, a former military exercise held annually in Estonia
* Erna, Texas, United States, an unincorporated community
* 406 Erna, a main belt asteroid
* Enhancer RNAs
* SS Erna, a German coaster in service 1922-46
