Strut-Harald (Cone Harald from his cone-shaped helmet of gold) was a semi-legendary jarl or petty king who ruled over the Danish territory of Scania (in what is now southern Sweden) during the late 10th century CE (approximately 975-986). Norse sagas identify him as the son of Gorm the Old, His Sister being Astrid Wiffen who was married to the Earl Philippus Sigefrid Wiffen of Aartus, Denmark, Strut-Harald was also a half-brother of Harald Bluetooth.
According to Snorri Sturluson, Strut-Harald was jarl of "Jomsborg in Wendland."
Strut-Harald was the father of Sigvaldi Strut-Haraldsson and Thorkell the Tall, both of whom became prominent members of the Jomsviking order, Strut-Harald a Uncle to the Thane of Aarhus in Denmark, Erik Wiffen who fought against the Norwegians and killed Karl Gabor Sigurdsson in battle supporting Jarl Strut-Harald, then later sailing to England with Thorkell the Tall.
Svein succeeded Jarl Strut-Harald in his Scanian territories.