| Petite Baïse | |
| Pushpin Map: | France#France Occitanie |
| Source1 Location: | Lannemezan |
| Source1 Coordinates: | 43.1078°N 0.3833°W |
| Mouth Coordinates: | 43.5878°N 0.4111°W |
| Subdivision Type1: | Country |
| Length: | 75km (47miles) |
| Source1 Elevation: | 615m (2,018feet) |
| Mouth Elevation: | 135m (443feet) |
| Discharge1 Avg: | 2.39m3/s |
| Basin Size: | 210km2 |
The Petite Baïse (in French pronounced as /pətit ba.iz/, literally Little Baïse; Occitan (post 1500);: Petita Baïsa) is a 75km (47miles) long river in the Hautes-Pyrénées and Gers départements, southwestern France. Its source is in Lannemezan, on the plateau de Lannemezan. It flows generally north. It is a right tributary of the Baïse into which it flows in l'Isle-de-Noé.
This list is ordered from source to mouth: