There have been two baronetcies created for members of the St Aubyn family, one in the Baronetage of England and one in the Baronetage of the United Kingdom.
The St Aubyn Baronetcy, of Clowance in the County of Cornwall, was created in the Baronetage of England on 11 December 1671 for John St Aubyn, who later represented St Michaels in the House of Commons. He was the son of Colonel John St Aubyn, who had acquired the island and castle St. Michael's Mount in 1659, having already become Governor of the Mount in 1647.