Agda
Agda may refer to:
- Agda (programming language), the programming language and theorem prover
 - Agda (Golgafrinchan), the character in The Hitchhiker's Guide to the Galaxy by Douglas Adams
 - Liten Agda, the heroine of a Swedish legend
 - Agda Montelius, a Swedish feminist
 - Agda Persdotter, a Swedish royal mistress of the 16th-century
 - Agda Rössel, a Swedish politician
 - Agda Östlund, a Swedish politician
 - Dayan Agda, a Filipino politician