Living dinosaur

• Living fossils, extant taxa that closely resemble organisms otherwise known only from the fossil record
• Origin of birds, the only extant clade of dinosaurs
• Paleocene dinosaurs, non-avian dinosaurs alleged to have survived into the beginning of the Paleocene epoch
• Living dinosaurs, a belief of adherents to the pseudosciences of cryptozoology and young Earth creationism
• Mokele-mbembe, a legendary creature claimed by adherents of the pseudosciences of young Earth creationism and cryptozoology to be a "living dinosaur"
• Partridge Creek monster, the subject of a story by French writer Georges Dupuy