Paul Di Filippo (born October 29, 1954) is an American science fiction writer.

Antonio Urias praised the collection The Steampunk Trilogy (1995) in a brisk review, writing in summary that the tripartite book "contains three bizarre and occasionally humorous novels taking the reader from Queen Victoria's amphibian doppelganger to racist naturalists and black magic, and finally the interdimensional love story of Emily Dickinson and Walt Whitman."

The first novella, simply entitled "Victoria" follows Cosmo Cowperthwait the inventor of a human-amphibian hybrid that bares (sic) an uncanny resemblance to Her Majesty, Queen Victoria, as well as an insatiable sexual appetite.

As a result, Di Filippo adopts a more satirical tone as Agassiz confronts anarchists, voodoo, academic maneuverings, swordfights, and a Lovecraftian horror all without losing a hint of his arrogance or smug assurances.

More than either of the previous stories, "Walt and Emily" delights in literary references and games.