Headless

Headless may refer to:

Science and technology

Medicine

• Acephalic acardia, a type of twin reversed arterial perfusion in which one twin is born without a head
• Acrania, missing cranial bones
• Anencephaly, absence of a major part of the brain and skull
• Decapitation, the severing of the whole head from the body

Computing

In computing and software, headless can either refer to software or servers without a graphical interface, or software platforms that decouple front- and back-end components.

• Headless computer, a server with no monitor, keyboard, or mouse attached
• Headless software, software capable of working on a device without a graphical user interface
• Headless browser, a web browser without a graphical user interface
• Headless CMS, a backend-only content management system that employs APIs to display content

Linguistics

• Headless phrase, a term in linguistics for a phrase with no head

Geology

• Headless Formation, a geologic formation in Northwest Territories

Arts and entertainment

• Headless (TV series) a British television series starring Patrick Robinson and Ginny Holder
• Headless, a foe in Ultima
• Headless, NPCs in The Matrix Online
• Headless (2015 film), a horror film by Arthur Cullipher
• Headless (2024 film), a Nigerian film
• Headless (band), an Italian hard rock band
• Mike the Headless Chicken (non-fiction), a Wyandotte chicken that lived for 18 months after his head had been cut off
• "Headless", a song by Joe Satriani from his album Flying in a Blue Dream
• "Headless", a song by Hella from the album Tripper
• Stree 2: Sarkate Ka Aatank (lit. 'Stree 2: Terror of the Headless'), a 2024 Indian film

Literature and myths

• Headless line, a form of catalexis omitting an initial syllable
• Headless men, a mythical headless humanoid creature
• Headless Horseman (disambiguation)
• Headless Horseman