Abraham Delfos (1731–1820) was a Dutch artist, art dealer, and auctioneer based in Leiden. He trained under Jan Wandelaar and became known for his graphic work and drawings after old masters. Delfos created several commissioned prints and book illustrations, including a notable series of twelve prints depicting the sled parade of January 24, 1776, organized by the Leiden society Veniam Pro Laude. He also reproduced old artworks, contributing to the preservation of Dutch artistic heritage. Aside from his artistic work, Delfos was very active in Leiden’s auction scene, organizing multiple auctions from 1769 to 1808, and often buying frequently at these sales to replenish his stock. He served as director of the Leiden Drawing Academy from 1761 and later as chairman of the art society Ars Aemula Naturae.
