Ka

Ka may refer to:;Typography
*Ka (cyrillic), a letter of the Cyrillic alphabet
*Ka (kana), a Japanese character
* Devanagari क

;Mythology
*A part of the soul in Egyptian mythology
*As a Sanskrit noun:
**a name of Prajapati
**a name of Brahman
**a name of Daksha

;Toponyms
*Ka River, a river in Nigeria
*Karnataka, a state of India ()

;Science
*Ka band, the kurz-above band in the electromagnetic spectrum
*K_a, the acid dissociation constant in chemistry
* Cathode.

;People
*Ka (Pharaoh), predynastic pharaoh of Upper Egypt

;Brand names and popular culture
*Ford Ka, model of car made by Ford Motor Company
*Kamov, a Russian aircraft design bureau
*KÀ (Cirque du Soleil), a troupe based at the MGM Grand Las Vegas
*Ka (Dark Tower), fate or destiny in Stephen King's Dark Tower series
* "Ka", a video game for the Playstation 2 released in North America as Mister Mosquito
* Kool-Aid, drink brand

KA may mean:
*Kaplan Arena
*Kappa Alpha Society
*Kappa Alpha Order, a Greek letter organization in the United States
*(K-A), a former computer game rating later replaced by "E for Everyone"
*King's Arms public house in Oxford
*post-nominal letters for Knight of the Order of St. Andrew
*Kurt Angle
*"Kirby's Adventure", NES game, 1993ka may mean:
*kiloannum, one thousand year.

Either KA or ka may stand for:
*Dragonair (IATA airline designator)
*Karlsruhe, in Germany
*Kilmarnock, in Scotland
*Georgian language (ISO 639 alpha-2 language code), from its autonomic "Kartuli"

kA may mean:
*kiloampere, an SI unit of electric current