| Ordiarp | |
| Native Name: | Urdiñarbe |
| Commune Status: | Commune |
| Arrondissement: | Oloron-Sainte-Marie |
| Canton: | Montagne Basque |
| Insee: | 64424 |
| Postal Code: | 64130 |
| Mayor: | Jean-Michel Arrayet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Pays Basque |
| Coordinates: | 43.1864°N -0.9428°W |
| Elevation M: | 197 |
| Elevation Min M: | 131 |
| Elevation Max M: | 1239 |
| Area Km2: | 29.71 |
Ordiarp (pronounced as /fr/; eu|Urdiñarbe)[2] is a commune in the Pyrénées-Atlantiques department in south-western France.
It is located in the former province of Soule.[2]