Brands
- India
- Indian Ridge
- Indian Ridge Traders
- Indiana
- Inox
- Inter
- IPCO
- IRBI Knives
- Ireland
- Italy
- IXL
- IXL Ceci. Ci
- IXL George Wostenholm
- J Nielsen-Mayer and Sons Cutlery Co.
- J Rodgers and Sons
- J&D Tool Co
- J. A. Henckel
- J. A. Henckels
- JA Henckles
- Jack Wolf Knives
- Jackeroo
- Jaguar
- Jake Hoback
- Jantz
- Japan
- Japan Cleaver
- Japan Custom
- Jeff Murison
- Jeff White
- Jensen
- John EK
- John Nelson
- John Primble
- Johnny Mack Brown
- Jonathan Crookes
- Jowika
- Joy
- JPCD
- JUNGLEE
- Just Life Stage
- Jyubei
- K Mark
- K.T. Cutler
- Ka-Bar
- Kabar
- Kagayaki
- Kai
- Kai Cut
- Kaicut
- Kakuri
- Kane Cutlery
- Kanetsugu
- KANETSUGU PRO-S
- Kanetsune
- Kanger
- Kassnar
- Kato
- Katz
- Kauffman
- Keen Kutter
- Keith Murr
- Ken Richardson
- Kent
- Kershaw
- Keshaw
- KHYBER
- Kiffe
- Kiku Knives
- Kikusui
- Kim
- Kinfolks
- Kinryu
- Kissing Crane
- KitchenAid
- Kizer
- Klaas
- Klaas Robi
- Klein
- Klein & Sons
- Klein Tools
- Klotzli
- KnifeGuys
- Knifeware
- Knight's Armament
- Knights Elements
- Knives of Alaska
- Koji Hara
- Kondo
- Kopromed
- Krusius
- Kutmaster
- Kutmaster Ulster
- Kvernelands
- Kwik
- Kyocera
- L.F. & C.
- Lakota
- Lansky Sharpeners
- Lash Larue
- Latama