Aleph is the first letter of many Semitic abjads (alphabets).
Aleph may also refer to:
Science, technology and mathematics ALEPH experiment (Apparatus for LEP Physics at CERN), detector of the Large Electron-Positron Collider Aleph kernel, a computer operating system kernel Aleph number, in mathematics set theory Aleph, an advanced system for inductive logic programming Aleph (Automated Library Expandable Program), software by Ex Libris Group Aleph, an investigative data platform containing an archive of government records and open databases, maintained by OCCRP Aleph (TeX), a TeX engine extension consolidating Unicode features from Omega and directional features from ε-TeX Aleph (psychedelic), a psychoactive drug
Literature Aleph (novel), by Brazilian author Paulo Coelho The Aleph and Other Stories, short story collection by Argentine author Jorge Luis Borges "The Aleph" (short story), title work of the collection Aleph, a character in the Warren Ellis comic series Global Frequency Aleph, a plot element in the novel Mona Lisa Overdrive by William Gibson Aleph (), a shorthand designation for Codex Sinaiticus, a 4th-century manuscript of the Bible
Music Aleph (band), a 1980s Italo disco band Aleph (pianist), stage name of Fady Abi Saad, born 1980) Aleph, a 2013 album by Gesaffelstein "The Aleph", a song on the album Saints by Destroy the Runner "Aleph", a song by Anahí Aleph, a record label founded by Lalo Schifrin
Organizations Aleph Institute, a Jewish humanitarian organization for both prisoners and military personnel ALEPH: Alliance for Jewish Renewal Aleph Zadik Aleph, international youth-led fraternal organization for Jewish teenagers Aleph Melbourne, an LGBT Jewish organization Aleph, the current name of the Japanese cult and terrorist group Aum Shinrikyo
People with the surname Patrick Aleph (born 1983), American writer and musician
Other Aleph (film), a silent film by Wallace Berman Aleph (journal), an academic journal on Jewish history and the history of science Aleph One, the game engine of the Marathon video game trilogy Aleph Sailing Team, a French America's Cup syndicate Mount Aleph, a location in the video game Golden Sun Aleph, the protagonist of the video game Shin Megami Tensei II Aleph, the highest and most threatening ranking for Abnormalities in the Korean video game Lobotomy Corporation Aleph, a playable character in the mobile game Reverse: 1999 Aleph (ILP), an inductive logic programming system
See also Alef (disambiguation)