| Lys | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Lys (Pyrénées-Atlantiques).svg |
| Arrondissement: | Oloron-Sainte-Marie |
| Canton: | Oloron-Sainte-Marie-2 |
| Insee: | 64363 |
| Postal Code: | 64260 |
| Mayor: | Nadège Poueymirou Bouchet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Vallée d'Ossau |
| Coordinates: | 43.1311°N -0.3517°W |
| Elevation M: | 424 |
| Elevation Min M: | 304 |
| Elevation Max M: | 510 |
| Area Km2: | 15.40 |
Lys (pronounced as /fr/; oc|Lo Lis) is a commune in the Pyrénées-Atlantiques department in southwestern France.
The river, a 12.5 km long tributary of the Béez, passes through the village Lys. Several tributaries of the Landistou (Betbeder, Bonnasserre, Chourrup, Lazerau, Lespereu) also pass through the commune. The northern part of the commune is drained by the river, a 15.2 km long tributary of the Gave de Pau, and some of its tributaries (Gest, Herran, Luz de Casalis). The southern part of the commune is drained by the stream Ruisseau de la Fontaine de Mesplé (Béez basin), and its tributary Ruisseau de Subercase.
The name Lys appears as Lis-Sainte-Colomme (Lily Saint Colomme) from the 1721 census. The name comes from Gascony, and means 'flat land'.
Lys was formerly an annex of Sainte-Colome until it acquired municipality status in 1858.
The current mayor is Nadège Poueymirou Bouchet, in office since 2020.[1]
The town is part of the following intercommunal structures:
The town's economy is primarily oriented toward agriculture and livestock (sheep, cattle, pigs, mules).