Castelnau-d'Auzan (Castelnau-d'Auzan)
- former commune in Gers, France
- Country:
- Postal Code: 32440
- Coordinates: 43° 56' 54" N, 0° 5' 9" E
- GPS tracks (wikiloc): [Link]
- Area: 43.79 sq km
- Population: 1047
- Wikipedia en: wiki(en)
- Wikipedia: wiki(fr)
- Wikidata storage: Wikidata: Q632426
- Wikipedia Commons Category: [Link]
- Freebase ID: [/m/03mc84w]
- GeoNames ID: Alt: [6448364]
- BnF ID: [152556661]
- PACTOLS thesaurus ID: [pcrtJOZj9IkVaj]
- INSEE municipality code: 32079