Halvdan is a masculine given name primarily used in Norway. It is a variant of Halfdan, which itself derives from the Old Norse name Hálfdan, meaning "half Danish" — composed of hálfr "half" and Danr "Dane". Originally a nickname for someone of mixed Danish heritage, the name has deep roots in Norse legend and history. Etymology and Historical Background The name Halfdan appears in Norse mythology and sagas. According to legend, Halfdan was a king of Denmark and the father of the heroes Helgi and Hróarr (the latter corresponding to Hrothgar in Beowulf). The Old Norse spelling Hálfdan was common among early medieval Scandinavian rulers. The Norwegian form Halvdan emerged as a linguistic adaptation, dropping the f and changing the vowel sounds. By the Viking Age, the name was borne by several notable figures, including Halvdan the Black (c. 810–860), a king of Vestfold in Norway and father of Harald Fairhair, the first king of a unified Norway. Notable Bearers Several prominent Norwegians have carried the name Halvdan. In politics, Halvdan Koht (1873–1965) was an influential historian and Labour Party politician who served as Norway's Minister of Foreign Affairs. Halvdan Aarsrud (1878–1925) was a bailiff and Labour politician. Halvdan Skard (born 1939) also followed in the political tradition of the Labour Party. In the arts, Halvdan Holbø (1907–1995) and Halvdan Ljøsne (1929–2006) were both painters. Among cultural figures, Halvdan Sivertsen (born 1950) is a well-known Norwegian singer-songwriter. The name also appears in Swedish history: a runemaster from 11th-century Södermanland is known simply as Halvdan. Cultural Significance Halvdan remains a traditional yet enduring name in Norway, often associated with strength and heritage due to its royal and legendary connections. While less common today, it persists as a given name and can also be found as a patronymic element (e.g., in the name Trygve Halvdan Lie, the first Secretary-General of the United Nations). Its relationship to the broader Halfdan family roots it in the shared onomastic traditions of Scandinavia. Meaning: "half Danish" Origin: Old Norse Hálfdan Type: Given name (masculine) Usage Regions: Norway, with historical use in Sweden and Denmark