Ka

Ka or KA may refer to:

Arts and entertainment

• K.A. (Kohntarkosz Anteria), a 2004 album by Magma
• Kà, a Cirque du Soleil show
• Ka (Dark Tower), a plot element in Stephen King's Dark Tower series
• Mister Mosquito, a 2001 video game, known in Japan as Ka

Businesses and organizations

• Kappa Alpha Order, a fraternity founded in 1865 at Washington and Lee
• Kappa Alpha Society, a fraternity founded in 1825 at Union College
• Karenni Army, a Burmese guerilla organization
• Knattspyrnufélag Akureyrar, an Icelandic football club
• Kuklos Adelphon, an 1800s-era Southern fraternity
• Khan Academy, a non-profit educational organization
• King's Arms, Oxford, a pub known as the KA

Language

Languages

• Ka, a variety of the Central Banda language
• Georgian language, by ISO 639-1 code

Characters

• Ka (Cyrillic), a letter in the Cyrillic script
• Ka (Indic), a group of related glyphs from the Brahmic family of scripts
• Devanagari ka, a letter in the Devanagari script
• Ka (Javanese) (ꦏ), a letter in the Javanese script
• Ka (kana), a syllabic grapheme in the Japanese katakana and hiragana scripts

People

• Ka (pharaoh) (fl. c. thirty-second century B.C.), Predynastic pharaoh of Upper Egypt
• Ka (rapper) (1972–2024), performer

Places

• Ka Farm, Østre Toten, Norway; see List of short place names
• Ka Island (Ka-to), North Korea
• KA postcode area, Scotland
• Ka River, Nigeria
• Karlsruhe, Germany (e.g. code used on German vehicle registration plates)
• Karnataka, India

Science and technology

• K_a, an acid dissociation constant
• K_a band, a microwave band
• K_a, the absorption rate constant of a drug
• K_a, number of non-synonymous substitutions at a DNA site, used in K_a/K_s ratio
• Ka tree, Terminalia carolinensis
• kiloannum or kiloannus (ka), a unit of time equal to one thousand (10³) years
• Keepalive, a computer network message
• Kiloampere (kA), a unit of electric current

Transport

• Ford Ka, a car
• NZR K^A class, a New Zealand steam locomotive
• KA, IATA code of Aero Nomad Airlines, a Kyrgyz airline
• KA, then IATA code of Cathay Dragon, formerly Dragonair
• Kenya Airways
• Code for products of Kamov, a Russian rotorcraft manufacturing company

Other uses

• Ka (Bengali), a consonant character
• Ka (cuneiform)
• Ka or kꜣ, "double" or "vital essence", an Ancient Egyptian concept of the soul or spirit
• Knight or Dame of St Andrew, a Barbadian award
• Kingda Ka, a roller coaster at Six Flags Great Adventure
• KA, a carbonated drink produced by the company A.G. Barr
• "Ka" (song), a song composed by LeaF for Taiko no Tatsujin