English abbreviations from nk to nl
- nK (Nanokelvin)
- NKA (No Known Allergies)
- NKAWTG (Nobody Kicks Ass Without Tanker Gas)
- NKB (Nepean Kanata Barracudas)
- NKC (Northwest Kidney Centers)
- NKCA (National Kidney Cancer Association)
- NKCS (Northwest Korean Culture Society)
- NKDA (New Town Kolkata Development Authority)
- NKE (Natural Keyboard Elite)
- NKEA (Northern Kentucky Electrical Association)
- NKF (National Kidney Foundation)
- NKFM (National Kidney Foundation of Michigan)
- NKF NCA (National Kidney Foundation of the National Capital Area)
- NKF-O (National Kidney Foundation of Ohio)
- NKG (Nanjing Lukou International Airport)
- NKH (Nonketotic hyperglycinemia)
- NKI (National Karate Institute)
- NKK (North Korean Kommunists)
- NKL (Nkolo Airport)
- NKM (Nagoya Airfield (formerly: NGO))
- NKN (North Korean Nutcakes)
- NKO (Navy Knowledge Online)
- NKS (New Kind of Science)
- NKT (Şırnak Airport)
- NKU (Northern Kentucky University)
- NKV (Nordisk Kollegium För Viltforskning)
- NKVD (Narodnyi Komissariat Vnutrennikh Del (Russian "People's Commissariat of Internal Affairs") (1934–1954))
- NKX (MCAS Miramar)
- NKZ (North Korean Zombies)
- nl (Dutch language (ISO 639-1 code))