CDNA, cDNA or C-DNA might stand for:
Genetics
edit- Complementary DNA, DNA synthesized from a single-stranded RNA
- C-DNA, C form DNA, one of many possible double helical structures of DNA
Sports
edit- PFC CSKA Sofia, a Bulgarian professional association football club
Technology
edit- CDNA (microarchitecture), a graphics processing unit microarchitecture by AMD for data centers and supercomputers