Dida can refer to:
- Edvaldo Alves de Santa Rosa, former Brazilian football player famous in the 1950s and 1960s
- Andre Amade, Brazilian mixed martial artist
- Dida (footballer born 1973), real name Nélson de Jesus Silva, Brazilian goalkeeper
- Dida language, a Kru language, or two languages, spoken in Côte d'Ivoire
- Dida Diafat, a Frenchman who became a world champion in Thai kickboxing
- DiDA, the Diploma in Digital Applications
- Drug Industry Document Archive, the Drug Industry Document Archive at the University of California, San Francisco, Library