| Acronym | Definition |
|---|
| CTL | Control |
| CTL | Center for Teaching and Learning |
| CTL | Cytotoxic T-Lymphocyte (immunology) |
| CTL | Cytotoxic T cell |
| CTL | Coal-to-Liquid |
| CTL | Computation Tree Logic |
| CTL | Complex Text Layout |
| CTL | Certificate Trust List |
| CTL | Cut to Length |
| CTL | Constructive Total Loss |
| CTL | Curriculum, Teaching and Learning |
| CTL | Credit-Tenant Lease |
| CTL | Crossing the Line |
| CTL | Construction Technology Laboratories, Inc. |
| CTL | Center for Telemedicine Law |
| CTL | Core Test Language |
| CTL | Critical Task List |
| CTL | Choose the Left |
| CTL | Commercial Testing Laboratory |
| CTL | Charleville, Queensland, Australia - Charleville (Airport Code) |
| CTL | Clinical Team Lead (insurance carriers) |
| CTL | Complex Text Language |
| CTL | Central Testing Laboratory Ltd |
| CTL | Capacitive Threshold Logic |
| CTL | Carrier Tracking Loop (radio electronics) |
| CTL | Candidate Target List |
| CTL | Consumer Testing Laboratory |
| CTL | Combat Training Launch |
| CTL | Coalition Theatre Logistics (Joint US/AS project to improve coalition logistics interoperability) |
| CTL | Canoga Test Laboratory (NASA) |
| CTL | Credit Tenant Leasing |
| CTL | Code Tracking Loop |
| CTL | Compatibility Test Laboratory |
| CTL | Committee on Technological Literacy |
| CTL | Composite Tape Laying |
| CTL | CTSS Command Language Controller |
| CTL | Computing Technology Laboratory |
| CTL | Contingent Termination Liability |
| CTL | Carrier Takeoff & Landing |
| CTL | Contractor Tung-Sol (Electronic tubes made by Tungsol for US Army) |
| CTL | Consumables Team Leader |
| CTL | Chemical Technology Laboratory |
| CTL | Committee On Telecommunications Law |
| CTL | Control-Transfer Language |
| CTL | Cashier Team Leader (Target stores employee title) |
| CTL | Command Talking Language |
| CTL | Component Team Leader (US Navy) |
| CTL | Certification in Transportation & Logistics Program (American Society of Transportation & Logistics) |
| CTL | Control Transfer List |
| CTL | Concurrent Test Latency |
| CTL | Cyclotourisme Lionnais (French cycling club) |
| CTL | Children to Love |
| CTL | Chaudronnerie Tuyauterie Launay (French boilermaking company) |
| CTL | Construction Traditionnelle Loverienne (French construction company) |
| CTL | Centre du Temps Libre (French: Free Time Center) |
| CTL | Centre Textile Logistique (French: Textile Logistics Center) |
| CTL | Certificate in Team Leading |
| CTL | Close the Loop (various organizations) |
| CTL | Centre des Technologies du Logiciel (French: Software Technology Center) |
| CTL | Centre Technique de la Literie (French bedding company) |
| CTL | Creative Technology, Ltd. (various locations) |
| CTL | Compact Track Loader |
| CTL | Custody Time Limit (UK) |
| CTL | Cévennes Terre de Lumière (French heritage association) |