Preston Dennett is an American UFO researcher and author known for case collections on contact, healing claims, schoolyard encounters, underwater UFO reports, and regional UAP history. His work emphasizes witness interviews and narrative case preservation rather than government-policy analysis. He is included as a prolific civilian ufologist whose books are widely cited in experiencer and high-strangeness research circles.
Dennett has written dozens of books on UFO and paranormal subjects, often organizing material by encounter type or location. His best-known UAP-adjacent themes include alleged onboard healings, humanoid encounters, underwater objects, and California sighting history. While much of his material rests on testimonial evidence rather than instrumented data, his contribution is archival: preserving large numbers of civilian accounts that might otherwise remain scattered across newsletters, interviews, and local reports.