Skúli Þórsteinsson was an 11th-century Icelandic poet and warrior. He was the grandson of Egill Skallagrímsson and a courtier of Jarl Eiríkr Hákonarson. A short account of his life is given at the end of Egils saga: In Oddr Snorrason's Saga of Olaf Tryggvason Skúli is mentioned as one of the last people to see Olaf Tryggvason, during the Battle of Svolder. Skúli also has a small role to play in Gunnlaugs saga where he introduces Gunnlaugr ormstunga to Jarl Eiríkr. Skáldatal lists both of them as court poets of the jarl.