Morcar (or Morkere) (Old English: Mōrcǣr) (died 1015) was a thane (minister) of King Æthelred the Unready. He was given lands in Derbyshire in 1009, including Weston-on-Trent, Crich, and Smalley by King Æthelred in 1011 and 1012. He was also given the freedom from the three common burdens. He and his brother Sigeferth were murdered in 1015 by Eadric Streona and their lands seized by the king. Sigeferth's widow was sent to Malmesbury Abbey, but the future King Edmund Ironside rescued her from her confinement and married her.