Nadya may refer to:
- Nadya A.R., Pakistani author
- Nadezhda Krupskaya (1869–1939), Russian Bolshevik revolutionary and politician, wife of Vladimir Lenin
- Nadya Larouche (born 1956), Canadian writer of children's books and theatre plays
- Nadya Rusheva (1952–1969), Russian painter and illustrator
- Nadya Suleman (born 1975), American single mother nicknamed "Octomom"
- Nadezhda Tolokonnikova (born 1989), Russian artist, political activist and prisoner of conscience
- Nadya, the prison guard in Muppets Most Wanted.