Margaret Alison of Mar, 31st Countess of Mar, is a Scottish hereditary peer and politician. She was a crossbench member of the House of Lords from 1975 to 2020 and was one of 92 hereditary peers elected to remain in the Lords in 1999. She is the holder of the original earldom of Mar, the oldest peerage title in the United Kingdom. She is the only extant suo jure countess in the United Kingdom, and was the only female hereditary peer in the House of Lords from 2014 to 2020. She is also a farmer and former specialist goats cheesemaker in Great Witley, Worcestershire.
- Occupation
- politician
- Position held
- member of the House of Lords
- Citizenship
- United Kingdom
