CD
- cd – (s) Candela
- Cd – (s) Cadmium
- CD – many, including Compact Disc; see entry
- CD1 – (i) Cluster of Differentiation 1 (a small gene family)
- CDA – (i) UK Centre for Defence Analysis
- CDC
- (i) Centers for Disease Control and Prevention (originally (U.S.) Communicable Disease Center)
- Control Data Corporation
- Cult of the Dead Cow
- CDD – (i) Capabilities Development Document
- CDE – (i) Chemical Defence Equipment
- CDEC – (i) U.S. Combat Development Experimentation Center
- CDF
- (i) California Department of Forestry
- Common Data Format
- (s) Democratic Republic of Congo franc congolais (ISO 4217 currency code)
- CDIAC – (a) Carbon Dioxide Information Analysis Center ("see-dee-ack")
- CDipAF – (i) Certified Diploma in Accounting and Finance
- CDL - (i) Commercial driver's license
- CDM
- (i) Clean Development Mechanism (Kyoto protocol)
- Cold Dark Matter (astronomy)
- CDMA – (i) Code Division Multiple Access
- CDMSII – (p) Cryogenic Dark Matter Search II
- Cdr – (p) Commander
- CDS
- (i) Chief of the Defence Staff
- Credit default swap
- Cdt – (p) Commandant
- CDT – (i) Central Daylight Time (UTC−5 hours)
Read more about this topic: List Of Acronyms And Initialisms: C