Hades in Christianity, according to the New Testament the place where the dead will be. Hell in Christian beliefs, In the New Testament, was written in the Greek language, Hades was notoften used as a synonym for hell, but since the Middle Ages, has often been taken as a synonym for hell.

HADES (software), a signal processing system.

Hades Almighty, a black metal band

Hades Records, a record label

Hades is also a song by Kalmah, from Swampsong

Hades by Dir en grey from their EP Six Ugly

Hades (DC Comics), a foe of Wonder Woman

Hades (Honorverse), a fictional maximum security prison in the David Weber's Honorverse

Hades (Disney), the villain from the 1997 Disney film Hercules

The Gray Wastes of Hades, also known as Hades, a Dungeons and Dragons plane

Hades is a hypothetical planet used in Uranian astrology

Hades (The Hills Have Eyes) a character from The Hills Have Eyes series of films

Hades (Saint Seiya), the Greek god Hades as used as a character in the Saint Seiya ficitonal scenario

Hades Nebula, a video game

Acheron Hades, foe of Thursday Next from the books of Jasper Fforde.

Hades is also neutron star in the Delta Pavonis system in the novel Revelation Space by Alastair Reynolds.

Hades (moon), an informal name from 1955 to 1975 for Jupiter IX: it is now called Sinope

Hadès (missile), a French nuclear ballistic missile system

Lena Hades (Лена Хейдиз), a Russian artist

Hades (roller coaster), a roller coaster at Mt. Olympus Water & Theme Park

The word "hades" may be one syllable, being a form of the verb "to hade", which is a miners' term for the way that a geologic fault has slipped.