Sado can refer to:
Places
Asia
- Sado Island, an island (佐渡島 Sadogashima) of Japan
- Sado, Niigata, a city (佐渡市 Sado-shi) of Niigata Prefecture, Japan
- Sado province (佐渡国 Sado no kuni), a former province of Japan located on the island
- Sado, Amarapura, Burma
Europe
- Sado (river), a major river in Portugal
- , a parish in the municipality of Setúbal, Portugal
Africa
- Sado, Benin
People
- Prince Sado, a Joseon Korean crown prince who never acceded
- Yutaka Sado, a Japanese conductor
Other
- Sado (film), a 2015 South Korean film
- Japanese tea ceremony (茶道 Sadō)
- Sado 550, a microcar built by Entreposto in Portugal
- Sado, a short story by Osamu Dazai
- Yasutora Sado, a fictional character in the anime and manga series Bleach
- Sadomasochism