Works better as a full name than Arnie does as a nickname. 

Arne

Aelle

Aethelwulf

Athelstan

Bjorn is one of the most recognizable <a href="https://nameberry.com/baby-names/173/scandinavian-names">Scandinavian names</a>, thanks in large part to tennis great Björn Borg, winner of five consecutive Wimbledon singles titles and six French opens and something of a rock star figure.
 
Bjorn has been in use since the days of the Vikings, but got a boost in popularity when Borg ruled the courts. There have also been other notable Bjorns in various fields in Sweden, Norway and Germany, ranging from the first king of Norway to a member of the pop group ABBA.
 
And if you do pick this name for your son, your baby Bjorn can be carried around in a Baby Bjorn.

Bjorn

Borg

Years ago we might have said that this name was unthinkable, but with old-fashioned names being so popular right now (consider Atticus, Leonidas, Arthur, Jasper, Augustus etc) what's to stop Cuthbert from becoming more wearable? Bertie is a cute (and very fashionable) nickname option for this grand old name.

Cuthbert

Cenwulf

Edgar is an Old English name historically associated with the tenth century English king known as Edgar the Peaceful. There was also a King Edgar of Scotland.
 Edgar has been a stalwart on the US <a href="https://nameberry.com/popular-names">popular names</a> lists, not dipping below the Top 400 until 2022, and is especially popular (as is Edgardo) with Latino families.
 Edgar plays a key role in King Lear and has had several distinguished namesakes, including artist Degas, Tarzan creator Edgar Rice Burroughs, and author and poet Edgar Allan Poe. In terms of style, however, most would rate it a distant third to Edward and Edmund. 
 Trivia tidbit: Joan Rivers' daughter Melissa named her son Edgar after her father, but he is called by his middle name Cooper.

Edgar

Some might be surprised to learn that Edwin has been a consistent presence on the <a href="https://nameberry.com/popular-names">popular names</a> list since statistics have become available.
 The most famous Edwin in history was a seventh century martyr called Edwin of Northumbria, and in literature is familiar from the protagonist of Charles Dickens' final (and unfinished) novel, The Mystery of Edwin Drood.
 Astronaut Buzz Aldrin's was born Edwin, and fellow astronaut Frank Borman honored him by using Edwin for his son.

Edwin

Egbert still suffers somewhat from being used as a stereotypical name for nerds and aristocrats. It would be a surprising choice, but with its edgy meaning and dusty charm, possibly it's so beyond cool that it's...actually kind of cool?

Egbert

Eric is derived from the Old Norse name Eiríkr, from the components ei, meaning "ever," and ríkr, "rule." It was adopted by English speakers in the mid-nineteenth century, who were already familiar with the exploits of the tenth century Viking navigator and discoverer of Greenland, Eric the Red. Erik is an alternate spelling and the preferred form of the name across much of Europe.
 
Eric—the all-time most popular Scandinavian <a href="https://nameberry.com/boys-names">boys’ name</a> in the U. S.—peaked in the Ricky Nelson/Rick Springfield period.
 From the mid-sixties to the late eighties, Eric was on the Top 25 list. Some of its best-known bearers: Eric Clapton, Eric Idle, Eric Dane and major characters in The Little Mermaid, True Blood and Friday Night Lights, not to mention Eric Cartman on South Park. Simon Cowell named his first son Eric after his father.
 Erik is the Old-World spelling of Eric, now mega popular in Germany and Sweden.

Eric

Eadric

Ecbert

Floki

Hakon

Haraldson

Horik

Jarl

The K is silent in this royal but common Scandinavian name that is, in this country, linked to a single figure -- Notre Dame football coach Knute Rockne. Could easily be confused with Newt. 

Knut

Kauko

Leif is one of the most recognizable <a href="https://nameberry.com/baby-names/173/scandinavian-names">Scandinavian names</a>, thanks to Icelandic explorer Leif Erikson, and is still one of the best, with a pleasant aural association with the word leaf. 
 Leif Erikson, son of explorer Eric the Red, was the first European to land in North America--some five hundred years before Columbus. Centuries later, the name became associated in the U.S. with 1970s teen idol Leif Garrett, the name peaking on the charts at Number 654 in 1970, dropping off completely in 1987. It climbed back onto the Top 1000 in 2014.
 Pronounced LAYF in its Scandinavian milieu, Leif and Lief are sometimes pronounced as Leaf in English-speaking countries. Joaquin Phoenix was for a time known as Leaf, in keeping with the <a href="https://nameberry.com/list/329/nature-baby-names">nature names</a> of his siblings.

Leif

Like Lars, Sven, Niels, and Nels, an unjustly neglected straightforward Scandinavian name. Surname Nilsson or the anglicized Nelson derives from Nils.

Nils

Olaf, though sainted and regal in Norway, is slightly oafish here. It is one of those names that has become completely familiar in the U.S. without ever becoming assimilated. Now that he's a comical character in Disney's Frozen, he might get some more attention.
 Olaf's solid Scandinavian history includes various kings of Norway, from the eleventh century St. Olaf (often mentioned by the Betty White character on Golden Girls) to the recent Olaf V.

Olaf

Olafur

Osiric

An fearsome old Norse name with a long history in Scandinavia. It's gotten a boost in the States from popularity of the History Channel drama "Vikings," in which the protagonist is named Ragnar. Ragnar Lodbrok (meaning "shaggy pants") was a legendary warrior whose story was told in the Viking sagas. Ragnar also recalls name of the Norse Judgment Day, Ragnarök. Easier versions here would be Raynor or Rainier, as in the late prince of Monaco.

Ragnar

Rollo is a livelier, roly-poly, o-ending version of Roland. 
 Although it sounds modern, Rollo actually was seen regularly on Latin documents in the Middle Ages, though not heard in everyday speech. Historically, it's associated with a powerful Viking leader--who had a wife named Poppa. 
 Rollo May was a well known existential psychologist. There have been Rollos on screen played by Buster Keaton ("The Navigator"), Rainn Wilson ("Juno") and John Cleese ("Fierce Creatures").
 Rollo has also been used over the years as a pet form of Roland, Rudolph and Ralph.

Rollo

Svein

Torstein

Tostig

A common <a href="https://nameberry.com/baby-names/173/scandinavian-names">Scandinavian name</a>, but hard to imagine being used elsewhere.

Unwan

Uppsala

Wigea

ribbons-and-soldiers's list "Names From Vikings - Men" of 35 great name ideas: Arne - Wigea!

Names From Vikings - Men

A list of the names of the male characters from the TV show Vikings.