Arrast-Larrebieu (; ) is a commune in the Pyrénées-Atlantiques department in the Nouvelle-Aquitaine region of south-western France. The inhabitants of the commune are known as Urrustoitars. Geography Arrast-Larrebieu is located in the former province of Soule some 12 km east by south-east of Saint-Palais and 10 km north by north-east of Mauléon-Licharre. Access to the commune is by the D243 road which branches off the D11 west of the commune and north of Espès-Undurein and passes through the village before continuing north-east to join the D115. The D135 from the D11 in the west to Moncayolle-Larrory-Mendibieu in the south-east passes through the south of the commune and the hamlet of Larrebieu. The commune is mainly farmland with many forests scattered throughout the commune. The Laxubie rises in the south of the commune and flows north past the village gathering many tributaries and joins the Apaure north of the commune. Several small streams rise in the west of the commune and flow west to join the Saison. Places and Hamlets Abbadia Aguelcheberry Aguerria Aitzaguer (ruins) Algalarrondo Arkabisquey Arrast Asconeguy Behety Bethulard Bou Garatia Gastelu Gastelu Arrast Gasteluchague Habiague Heguilus Hoilly Ibarbouen Lacoste Laplume Larçabal Larlette Larrebieu Larribet Mendiondo Oyhenart Poutou Sabalain Sagardoyburu Sallaberry Sunhary Tine Toponymy The commune name in basque today is Ürrüstoi-Larrabile or Ürrustoi-Larrebille. Jean-Baptiste Orpustan indicated that the spelling in Basque Arrast is sometimes given with the determinant Ürrüxtoia meaning "hazel tree grove". He also stated that larrabil means a "rounded moor, squat". The following table details the origins of the commune name and other names in the commune. Sources: Raymond: Topographic Dictionary of the Department of Basses-Pyrenees, 1863, on the page numbers indicated in the table. Orpustan: Jean-Baptiste Orpustan, New Basque Toponymy Origins: Bayonne: Cartulary of Bayonne or Livre d'Or (Book of Gold) Notaries: Notaries of Navarrenx History Paul Raymond noted on page 11 of his 1863 dictionary that the commune had a Lay Abbey, vassal of the Viscounts of Soule. Larrebieu was merged with the commune of Arrast on 16 October 1842. Administration List of Successive Mayors Inter-communality The commune is part of seven inter-communal structures: the Communauté d'agglomération du Pays Basque; the Sanitation association of Pays de Soule; the AEP association of Pays de Soule; the inter-communal association of la Vallée; the Energy association of Pyrénées-Atlantiques; the inter-communal association for the construction and operation of the CES at Mauleon; the association to support Basque culture.