| Ka | Acid Dissociation Constant 
| Others |
| KA | Cathay Dragon (Used to be called Dragonair)
| Others |
| KA | IEEE Gustav Robert Kirchhoff Award
| Others |
| KA | K Above
| Others |
| KA | Kahua Association
| Others |
| KA | Kalani Addy
| Others |
| KA | Kamikaza Attack
| Others |
| KA | Kappa Alpha
| Others |
| KA | Karen Ann
| Others |
| KA | Karnataka
| State |
| KA | Katherine Alice
| Others |
| KA | Keaton Alan
| Others |
| KA | Keep Alive
| Others |
| KA | Keep All
| Others |
| KA | Keine Ahnung
| Others |
| KA | Kennel Area
| Others |
| KA | Kentucky Association
| Others |
| KA | Ketoacidosis
| Others |
| KA | Key Account
| Others |
| KA | Key Accountabilities
| Others |
| KA | Key Address
| Others |
| KA | Keyboard Assist
| Others |
| KA | Keyed Alike
| Others |
| KA | Kick A**
| Others |
| KA | Kidding Aside
| Others |
| KA | Kids to Adult
| Others |
| KA | Kids To Adults
| Others |
| KA | Kill All
| Others |
| KA | Kill Assessment
| Others |
| KA | Killer Angels
| Others |
| KA | Killer Anonymous
| Others |
| KA | Kilo Amps
| Others |
| KA | Kilo Annam
| Others |
| KA | Kilo Anno
| Others |
| KA | Kilo Annum
| Others |
| KA | Kinetic Atom
| Others |
| KA | King Arms
| Others |
| KA | King Arthur
| Others |
| KA | Kirren Almanac
| Others |
| KA | Kitchen Appliance
| Others |
| KA | Kivandorlot Aifolvon
| Others |
| KA | Klingon Academy
| Others |
| KA | Knife Arena
| Others |
| KA | Knight Alpha
| Others |
| KA | Knightly Argus
| Others |
| KA | Knives of Alaska
| Others |
| KA | Knowledge Acquisition
| Others |
| KA | Knowledge Architecture
| Others |
| KA | Knowledge Area
| Others |
| KA | Knowledge Assessed
| Others |
| KA | Knowledge Automation
| Others |
| KA | Known Associates
| Others |
| KA | Kofi Annen
| Others |
| KA | Kommunale Anwendungen
| Others |
| KA | Kookie Am
| Others |
| KA | Kool Aid
| Others |
| KA | Korean American
| Others |
| KA | Kosher Austria
| Others |
| KA | Kouign Amann
| Others |
| KA | Kristin Armstrong
| Others |
| KA | Kunst Alboth
| Others |
| Ka | Kurtz-Above Band
| Others |
| KA | Kurupted Angelz
| Others |
| KA | Kust Artilleriet
| Others |
| KA | The King's Arms
| Others |
| KA | The Kings Arms
| Others |