List of American heiresses

This is a non-exhaustive list of some American socialites, so called American dollar princesses, from before the Gilded Age to the end of the 20th century, who married into the European titled nobility, peerage, or royalty.

The titles in this list are all mentioned or translated into English.

After the beginning of the Reconstruction Era and the Gilded Age (at the end of the American Civil War on 9 May 1865): No hereditary peerages have been created in the UK since Baron Margadale on 1 January 1965.