Nosferatu the Vampyre (German: Nosferatu: Phantom der Nacht, lit. 'Nosferatu: Phantom of the Night') is a 1979 gothic horror film directed and written by Werner Herzog. The film serves as both a remake of the 1922 film Nosferatu and an adaptation of Bram Stoker's 1897 novel Dracula. Herzog’s film is set in 19th-century Wismar, Germany, and Transylvania. The picture stars Klaus Kinski as Count Dracula, Isabelle Adjani as Lucy Harker, Bruno Ganz as Jonathan Harker, and French artist-writer Roland Topor as Renfield. There are two different versions of the film, one in which the actors speak English, and one in which they speak German.

Herzog's production of Nosferatu was very well received by critics and enjoyed a comfortable degree of commercial success. The film also marks the second of five collaborations between director Herzog and actor Kinski, following 1972's Aguirre, the Wrath of God. The film had one million admissions in West Germany and grossed ITL 53,870,000 in Italy. It was also a modest success in Adjani's home country, taking in 933,533 admissions in France.

A novelization of the screenplay was written by Paul Monette and published by both Avon Publishing and Picador in 1979. The 1988 Italian horror film Nosferatu in Venice is a "sequel-in-name-only", again featuring Kinski in the title role.

In 1850, Jonathan Harker is an estate agent in Wismar, Germany. His employer, Renfield, tasks him to visit Count Dracula, who wishes to buy a property in the town. Leaving his wife Lucy behind, Harker travels to Transylvania. En route, he stops at an inn, where the locals beg for him to stay away from the accursed castle. Ignoring the villagers' pleas, Harker continues his journey and arrives at Dracula's castle, where he meets the Count, a man with large ears, pale skin, sharp teeth and long fingernails.

The Count is enchanted by a small portrait of Lucy and agrees to purchase the Wismar property. As Jonathan's visit progresses, he is haunted at night by several encounters with Dracula. In Wismar, Lucy is tormented by nightmares, plagued by images of impending doom. Meanwhile, Renfield is committed to an asylum, having apparently gone insane and bitten a cow. To Harker's horror, he finds the Count asleep in a coffin, confirming to him that Dracula is indeed a vampire. That night, Dracula leaves for Wismar, taking coffins filled with the cursed earth that he needs for his vampiric rest. Harker finds himself imprisoned in the castle and attempts to escape through a window, severely injuring himself in the process. Taken to a hospital, he becomes increasingly ill.

Dracula travels with his coffins by ship to Wismar, systematically killing the ship's crew during the voyage. Death spreads throughout the town on the ship's arrival, which the local doctors, including Abraham Van Helsing, attribute to a plague caused by the rats from the ship, which begin swarming through the streets. The ailing Jonathan is transported home, but does not appear to recognize Lucy and says the sunlight is hurting him. That night, Dracula visits Lucy. Weary and unable to die, he demands some of the love that she gives to Jonathan, to no avail.

Now certain that something other than plague is responsible for the deaths, Lucy tries to convince the townspeople, who are skeptical and uninterested as they engage in a danse macabre and have a last supper. From a book given to Jonathan by the Transylvanians, Lucy discovers she can defeat Dracula by distracting him until dawn, at which time the rays of the sun will destroy him, but only at the cost of her own life. Jonathan's illness grows worse as his memory worsens and his skin turns pale. Dracula sends Renfield, who has escaped from the asylum, north to Riga as the forerunner for an outbreak of the Black Death.

Lucy spreads crumbled, consecrated Hosts in Dracula's coffins and around Jonathan and the chair he is sitting in. That night, she lures Dracula to her bedroom, where he drinks her blood. She distracts Dracula from the call of the rooster, and at the first light of day he dies. Van Helsing arrives to discover Lucy dead but victorious. He then drives a stake through the heart of Dracula to make sure that Lucy's sacrifice was not in vain. Awakening from his sickness, Jonathan has Van Helsing arrested for Dracula's murder. Getting a maid to sweep away the crumbled Host from around his chair, Jonathan, now a vampire, then states that he has much to do and rides away on horseback, garbed in the same fluttering black as Dracula.