Maud, 2nd Countess of Huntingdon (c1072-1130) was the daughter of Waltheof, Earl of Northumbria and Judith of Lens, 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 mother, Judith, refused to marry Simon I of St Liz, 1st Earl of Northampton. This refusal angered her uncle, King William I of England, who confiscated Judith's estates after she fled the country. Instead her daughter Maud was married to Simon of St Liz in 1090. She had a number of children with St Liz including:
1. Maud of St Liz, married Robert FitzRichard.
2. Simon II de St Liz, 4th Earl of Huntingdon and Northampton.
3. Saint Walteof de St Liz (1100 – bt 1159 - 1160).

Her first husband died in 1109 and Maud next married King David I of Scotland in 1113. From this marriage she had four children:
1. Claricia of Scotland, died unmarried.
2. Hodierna of Scotland, died unmarried.
3. Malcolm of Scotland, born and died ca. 1114.
4. Henry of Scotland, 3rd Earl of Huntingdon

The Scottish House of Dunkeld produced the remaining Earls of Huntingdon of the first creation of the title. She was succeeded to the Earldom of Huntingdon by her son Henry.

According to John of Fordun, she died in 1130 and was buried at Scone, but she appears in a charter dated 1147.