Gorm the Old, also called Gorm the Languid, was ruler of Denmark, reigning from c. 936 to his death c. 958 or a few years later. He ruled from Jelling, and made the oldest of the Jelling stones in honour of his wife Thyra. Gorm was born before 900 and died perhaps around 958 or possibly 963 or 964.

The Jelling stones are massive carved runestones from the 10th century, found at the town of Jelling in Denmark. The older of the two Jelling stones was raised by King Gorm the Old in memory of his wife Thyra. The larger of the two stones was raised by King Gorm's son, Harald Bluetooth, in memory of his parents, celebrating his conquest of Denmark and Norway, and his conversion of the Danes to Christianity.