CLD can mean:

  • Color Layout Descriptor (CLD) is designed to capture the spatial distribution of color in an image
  • McClellan-Palomar Airport in Carlsbad, California (IATA Code: CLD)
  • Causal Loop Diagram for modeling dynamic systems
  • Current limiting diode in electronics
  • CLD chromophore in organic chemistry and polymeric nonlinear optics
  • Chronic liver disease
  • Chronic lung disease
  • Constrained-layer damping, a mechanical engineering technique for suppression of vibration
  • Configurable Logic Device, synonym for PLD
  • cld, the clear direction flag instruction on x86 compatible CPUs, opposite of std