The Earls of Lade (Norwegian: ladejarler) were a dynasty of Norse jarls from Lade (Old Norse: Hlaðir), who ruled what is now Trøndelag and Hålogaland from the 9th century to the 11th century.^[1]

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The seat of the Earls of Lade was at Lade Gaard, now located in the eastern parts of the city of Trondheim. The site is near the seaside of the Trondheimsfjord, which was an important waterway in the Viking Age.^[2][3]

According to Snorri, King Harald I of Norway was a great commander but lacked a fleet. For that he was assisted by Håkon Grjotgardsson. In gratitude Harald made him the first earl of Lade.^[4]

• Hákon Grjótgarðsson (c. 860–870 – c. 900–920), an ally and father-in-law of Harald Fairhair
• Sigurðr Hákonarson (died 962), friend and advisor of Hákon the Good
• Hákon Sigurðarson (c. 937–995), ruler of Norway from about 975 to 995
• Eiríkr Hákonarson (960s – 1020s), governor of the majority of Norway under Svein Forkbeard
• Sveinn Hákonarson (died c. 1016), governor of a part of Norway under Olaf the Swede
• Hákon Eiríksson (died c. 1029–1030), governor of Norway under Canute the Great, last of the Earls of Lade