CLD
- CLD chromophore
- Carlsbad, California
- Causal loop diagram
- Center for Life Detection
- Chaldean Neo-Aramaic
- Charles Lutwidge Dodgson
- Chelsfield railway station
- Cholesterol-lowering drug
- Chronic liver disease
- Chronic lung disease (disambiguation)
- Color layout descriptor
- Commercial LEO Destinations program
- Constrained-layer damping
- DIGITAL Command Language
- Laserdisc player
- McClellan–Palomar Airport