Saga (佐賀市, Saga-shi) is the capital city of Saga Prefecture in Japan.
Saga is in northwest Kyūshū. Around 240,000 people live there.
Saga developed around Saga castle of the Nabeshima clan.
The city was the capital of Saga domain in the Edo period, and it was the capital of Hizen Province.
Every fall it holds the Saga International Balloon Fiesta.