- Country: Italy, Mexico, Spain
- Genres: Horror, Sci-Fi, Thriller
- Release: 1983-11-18
- Director: Umberto Lenzi
- Writers: Antonio Cesare Corti , Luis María Delgado , Piero Regnoli
- Language: Italian | Spanish
- Stars: Hugo Stiglitz , Laura Trotter , Maria Rosaria Omaggio , Francisco Rabal (1926–2001) , Sonia Viviani , Eduardo Fajardo , Stefania D’Amario , Ugo Bologna , Sara Franchetti , Manuel Zarzo
- Runtime: 88 min
- Awards: N/A
- AKA: La invasión de los zombies atómicos (Spain) , L'invasion des zombies (France, French Republic) , Город зомби , Cidade Maldita (Brazil) , La invasión de los zombies atómicos (Mexico) , L'avion de l'apocalypse (France, French Republic) , Incubo sulla città contaminata , Nyhta tromou stin poli (Greece) , La cité de la peur (Belgium) , ナイトメア・シティ (Japan) , Nightmare City (Norway) , O Pesadelo dos Mortos-Vivos (Portugal, Portuguese Republic) , Grad košmara (Serbia) , Pesadilla en la ciudad (Argentina) , Nightmare City (United Kingdom) , Nightmare City (Sweden) , Rædslernes blodige by (Denmark) , Großangriff der Zombies , City of the Walking Dead (United States of America) , Incubo sulla città contaminata (Italy) , Invasion by the Atomic Zombies , La contamination (Canada) , Invasion of the Atomic Zombies (Canada) , Pesadilla en la ciudad contaminada (Mexico) , Νύχτα τρόμου στην πόλη (Greece) , Nightmare City (United States of America) , Zombi 3: Efialtis stin poli (Greece)
- Plot: In a nameless European city, a local reporter and his doctor wife try to escape from hordes of blood thirsty zombies, undead people exposed to nuclear radioactivity, while the military leaders fight a losing war of attrition against the relentless atomic zombies.
- IMDB:tt0080931
Nightmare City Cast · · · ALL
Umberto Lenzi
Director
Hugo Stiglitz
Dean Miller
Laura Trotter
Dr. Anna Miller
Maria Rosaria Omaggio
Sheila Holmes
Francisco Rabal
(1926–2001)
Major Warren Holmes
Sonia Viviani
Cindy
Eduardo Fajardo
Dr. Kramer
Ugo Bologna
Mr. Desmond
Sara Franchetti
Liz the Maid
Manuel Zarzo
Colonel Donahue (as Manolo Zarzo)
Tom Felleghy
Lieutenant Reedman (as Tom Felleghi)
Pierangelo Civera
Bob
Mel Ferrer
General Murchison
Edy Biagetti
Military Officer (uncredited)
Ottaviano Dell’Acqua
Zombie Outside TV Station (uncredited)
Roberto Dell’Acqua
Zombie (uncredited)
Alejandro de Enciso
Captain (uncredited)
Umberto Lenzi
Reporter (uncredited)
Fiamma Maglione
Mr. Desmond's Secretary (uncredited)
Carmen Martínez Sierra
Woman in Elevator (uncredited)
Antonio Mayans
Cameraman (uncredited)
Benito Pacifico
Zombie (uncredited)
Renzo Pevarello
Victim at Murchison House (uncredited)
Silvana Scandariato
Woman at TV Station (uncredited)
Maurizio Streccioni
Television Station Worker (uncredited)
Sergio Testori
Soldier (uncredited)