All over the world, Ellefson (Ellefson 
) is an extremely rare male given name. Predominantly, Ellefson is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Ellefson | United Kingdom, Mexico, Canada, New Zealand, United States |
| aase olsdatter grotnes bergsto stephens ellefson (b. 1828) |
|
|
| lewis w. ellefson American politician, US (b. 1880) |
|