Darren William Naish is a British vertebrate palaeontologist, author and science communicator.
As a researcher, he is best known for his work describing and reevaluating dinosaurs and other Mesozoic reptiles, including Eotyrannus, Xenoposeidon, and azhdarchid pterosaurs. Much of his research has focused on Wealden Group fossils from the Isle of Wight.
He is founder of the vertebrate palaeozoology blog Tetrapod Zoology, and has written several popular science books. Naish also makes frequent media appearances and is a scientific consultant and advisor for film, television, museums and exhibitions. Naish is also known for his skepticism and work examining cryptozoology and sea monster sightings and beliefs from a scientific perspective.
He obtained a geology degree at the University of Southampton and later studied vertebrate palaeontology under British palaeontologist David Martill at the University of Portsmouth, where he obtained both an M. Phil. and PhD.
Though initially beginning his research career in palaeontology with the intention of working on fossil marine reptiles, Naish became known for his doctoral work on the basal tyrannosauroid theropod Eotyrannus, a dinosaur that he, together with Steve Hutt and colleagues, named in 2001. He has published articles on the Wealden Supergroup theropods Thecocoelurus, Calamospondylus and Aristosuchus. With Martill and "Dino" Frey, he named a new illegally acquired Brazilian compsognathid theropod Mirischia. In 2004, Naish and Gareth Dyke reinterpreted the controversial Romanian fossil Heptasteornis. Suggested by other authors to be a giant owl, troodontid or dromaeosaurid, it was argued by Naish and Dyke to be an alvarezsaurid, and as such is the first member of this group to be reported from Europe. Other fragmentary European alvarezsaurid specimens have since been reported.
Naish has also published work on sauropod dinosaurs, pterosaurs, fossil marine reptiles, turtles, marine mammals and other fossil vertebrates, and he has also produced articles on other aspects of zoology.