Wada or WADA can be about:
Wada (和田) is a Japanese family name. The following persons are of Japanese ancestry:
- Wada (house), a type of mansion (or large house) in Western India
- WOHS, a radio station in North Carolina, United States, formerly had call sign WADA
- WADA-LD, was a television station in North Carolina, United States
- E. Y. Wada, an American fashion label
- Lakes of Wada in mathematics
- Wada, a ruler of Hälsingland, Sweden
- Wada test, a test used to show which brain hemisphere (or which part of the brain) is being used (during the test)
- World Anti-Doping Agency
- Wada or waada, another name for the seepweed or Suaeda plant
- Wada, another spelling for Vada (food), a type of Indian fried snack
- Wada language, a Banda language of Central Africa