| Bula | |
| Source1 Location: | Lipovka, Ibresinsky District, Chuvash Republic |
| Mouth: | Sviyaga |
| Mouth Location: | near Devlikeyevo, Apastovsky District, Tatarstan |
| Mouth Coordinates: | 55.2053°N 48.3861°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | The Chuvash Republic and Tatarstan, Russia |
| Length: | 118km (73miles) |
| Discharge1 Avg: | 490m3/s (max, 1979, near Chatbash) |
| Basin Size: | 1580km2 |
The Bula (Russian: Була; Chuvash: Пăла, Păla; Tatar: Бола) is a river in the Chuvash Republic and the Republic of Tatarstan, Russia, a left-bank tributary of the Sviyaga. Its length is 118km (73miles) and its drainage basin is 1580km2.[1] It originates in the Chuvash Republic and falls into the Sviyaga River south of Devlikeyevo.
Major tributaries are the Cheremshan and the Malaya Bula. The maximum mineralization is 700–1000 mg/L. Batyrevo, the administrative center of Batyrevsky District of the Chuvash Republic, is located on the river.