Maud, 2nd Countess of Huntingdon (1074-1130) was the daughter of Waltheof, Earl of Northumbria, the last of the major Anglo-Saxon earls to remain powerful after the Norman conquest in 1066. She inherited her father's earldom of Huntingdon and married twice.

Her first marriage was to Simon of St Liz in 1090. That line produced the fourth and seventh Earls of Huntingdon. He died in 1109 and Maud next married King David I of Scotland. The Scottish royal house produced the remaining Earls of Huntingdon of the first creation of the title.

She had a number of children with St Liz including Simon and Maud . Via her marriage to King David she had four children, two sons, Malcolm and Henry and two daughters, Claricia and Hodierna .

She was succeeded to the Earldom of Huntingdon by her son Henry.