Brands
- 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
- 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
- Lawton Cutlery Co.
- Le Gourmet
- Leather
- Leather Pouch
- Leather Sheath
- Leatherman
- Legion
- Legitimus Collins & Co.
- Lenox
- Lensatic Compass
- Lewis
- Liberty
- Lilly
- Linder
- Logos Ex
- LOGOS-EX
- Lone Ranger
- Lucky Son
- Mac
- MADE IN CHINA
- Madonna
- MAG
- Mag-Lite
- Magnetic Compass
- Magnum
- Magnum Maverick
- Manila Folder
- MARBLES
- Marex
- Mark Horvat
- Marttiini
- Masahiro
- Masakage
- Masano
- Mascot
- Maserin
- Matco Tools
- MAXAM
- McLeod
- Mcusta
- Medford
- Messer
- Mexico
- Microtech
- Mike Irie
- Miller
- MM
- Mode Danish
- Moki
- Monarch
- Monopol
- Montana
- Monte Hale
- Morey