Scandinavian/Germanic form of Harold, from 'here' (army) and 'wald' (ruler), meaning 'army commander'.
Harald is the Old Norse and North Germanic form of Harold, built from two powerful elements: *Haraldr*, composed of *har* (army, warrior host) and *aldr* (ruler, chieftain) — a name that announced its bearer as a commander of men before he had spoken a word. The name thunders through the Viking Age like a war drum. Harald Fairhair, who unified Norway under a single crown in the ninth century, was the first great bearer; Harald Bluetooth, the tenth-century Danish king who christianized Denmark and whose name lives on in every wireless device on earth through the Bluetooth standard, was perhaps the most unexpectedly ubiquitous; and Harald Hardrada, who died at the Battle of Stamford Bridge in 1066, was the last great Viking king to stake a claim on England.
The name traveled from Scandinavia through Norman French as *Harold* and became deeply embedded in English history — Harold Godwinson was the last Anglo-Saxon king of England, killed at Hastings three weeks after defeating Hardrada. This double Harald-Harold nexus at 1066 means the name frames one of the most consequential years in European history. In Scandinavian countries the spelling Harald has never gone out of fashion: Harald V has been King of Norway since 1991, maintaining the name's unbroken thread from the Viking Age to the present day.
In the English-speaking world Harold acquired a somewhat fusty, grandfather-ish quality through the twentieth century — *Harold and Maude*, Harold Bishop of *Neighbours* — but the Norse spelling Harald has escaped that domestication entirely. It carries the bracing, uncompromising quality of fjord wind, a name that has never needed softening.