| K | Knit 
| Others |
| K | Know
| Others |
| K | Knowledge
| Others |
| K | Koln
| Others |
| K | Komutan
| Others |
| K | Konspiracy
| Others |
| K | Konstante
| Others |
| K | Kookazoid
| Others |
| K | Kool
| Others |
| K | Kopkit
| Others |
| K | Kosher
| Others |
| K | Kraft
| Others |
| K | Krazy
| Others |
| K | Kreosote
| Others |
| K | Kristos
| Others |
| K | Kuality
| Others |
| K | Kurt
| Others |
| K | Kurtz
| Others |
| K | Kuzey
| Others |
| K | Kvetch
| Others |
| K | Okay
| Slang |
| K | Permeability factor
| Others |
| K | Potassium
| Element |
| K | Strikeout
| Others |
| K | The Katoomba
| Others |
| K | The Keshas
| Others |
| K | the Kth item
| Others |
| K | Thousand
| Measurement Unit |
| K | Thousands of ...
| Others |
| K&B | Kafer Und Buggy
| Others |
| K&B | Kit and Buggy
| Others |
| K&B | Kitchen and Bath
| Others |
| K&C | Kinematics and Compliance
| Others |
| K&F | Knifes & Forks
| Others |
| K&H | Katch and Hold
| Others |
| K&H | Kia and Hyundai
| Others |
| K&K | Kelly & Karras, LTD.
| Others |
| K&M | Keyboard and Mouse
| Others |
| K&P | Knit & Purl
| Others |
| K&P | Knit and Purl
| Others |
| K&R | Kernighan and Ritchie
| Others |
| K'ED | Cracked
| Others |
| K-12 | Kindergarten-Twelfth Grade
| Others |
| K-3 | Spouse of a U.S. Citizen awaiting approval of an I-130 immigrant petition
| Others |
| K-5 | Kindergarten-Fifth Grade
| Others |
| K-APM | KSC (Kennedy Space Center) Automated Payloads Management plan/requirement
| Others |
| K-APN | KSC (Kennedy Space Center) Automated Payloads Notice
| Others |
| K-APPS | KSC (Kennedy Space Center) Automated Payloads Project Specification
| Others |
| K-BAND | 10,900 to 36,000 MegaHertz
| Others |
| K-DODM | KSC (Kennedy Space Center) Department Of Defense Management plan/requirement
| Others |