| Acronym | Definition |
|---|
| CLN | Clean |
| CLN | Colon |
| CLN | Cowboy Lifestyle Network |
| CLN | Class Library for Numbers |
| CLN | Community Learning Network |
| CLN | Celsion Corporation |
| CLN | Certificate of Loss of Nationality (USA government document given to citizens who renounce their USA citizenship) |
| CLN | Credit Linked Note |
| CLN | Clinical Laboratory News |
| CLN | Comitato di Liberazione Nazionale (Committee of National Liberation) |
| CLN | Connecticut League for Nursing |
| CLN | Corn Lethal Necrosis |
| CLN | Children's Literature Network |
| CLN | Cargo Logistics Network (Charlotte, NC) |
| CLN | Chautauqua Leadership Network (Chautauqua, NY) |
| CLN | Centrilobular Necrosis (Hypoxic Hepatitis) |
| CLN | Consorzio Lotterie Nazionali (Italian: National Lottery Consortium) |
| CLN | Computer Learning Network |
| CLN | Corrections Learning Network |
| CLN | Construction Loan Note |
| CLN | Collaborative Logistics Network |
| CLN | C'est la Nuit (French: This Is the Night) |
| CLN | Cheng Low NOx |
| CLN | Clergy Leadership Network |
| CLN | Comités de Liaison Nationaux |
| CLN | Centralne Laboratorium Naftowe (Warsaw, Poland) |
| CLN | California Linguistic Notes |
| CLN | Children's Literacy Network |
| CLN | Clinical Liaison Nurse |
| CLN | Carer Links North (Australia) |
| CLN | City Lights News |
| CLN | Creative Leisure News |
| CLN | CannabisLegalNews |
| CLN | Christ Lumière des Nations |
| CLN | Children's Literature Navigator |
| CLN | Carmarthenshire Learning Network (UK) |
| CLN | Canadian Languages Network |
| CLN | Ceroid Lipofuscinosis, Neuronal 1, Infantile |
| CLN | Computer Lawyer News |
| CLN | Corporate Learning Network |
| CLN | Convicencias Lúdicas Nacionales |
| CLN | Cargo Loading Manual (Nuclear) (TMINS) |
| CLN | Community Life Night (Calvary Church) |
| CLN | Contract Line Number |
| CLN | Complex and Large Numbers |
| CLN | Conservation Land Network |
| CLN | CB&I Lummus (The Netherlands) |
| CLN | Conferencia para el Liderazgo Nacional |
| CLN | Change Leader Network (various locations) |