#Romanian geography

• Agăș — The name of a commune and its administrative center located in Bacău County, in the Moldavia region of Romania, situated along the Trotuș River valley between the Tarcău and Ciuc mountains. The locality is renowned for its spectacular mountain landscapes, rich forestry resources, and traditional architecture specific to the sub-Carpathian area, holding a history tied to timber exploitation and trans-Carpathian trade routes.
• Ageadur — The name of a valley and an intermittent watercourse or stream located in the Dobrogea regions or in the historical areas with Tatar and Turkish influences in southeastern Romania; the resonance of the name is closely linked to hydronymy and toponymy of Oriental origin left by the Muslim communities that inhabited these arid steppes.
• Aghireșu — The name of a commune in Romania, located in Cluj County, composed of eleven villages (including the residence Aghireșu-Fabrici). It represents a historical railway junction and a hilly geographic area in northwestern Transylvania, known in the past for its mining exploitations of brown coal, gypsum, and kaolin clays.
• Alba — The name of a county in the historical region of Transylvania, Romania, with its seat in the municipality of Alba Iulia; also, the term constitutes the first element of famous toponyms (Alba Iulia, Cetatea Alba). Written with a capital letter, the noun individualizes a major administrative-territorial unit, historically recognized for its essential role in the Great Union of 1918.
• Albac — An important tourist commune located in Alba county, Transylvania, Romania, situated in the upper basin of the Arieșul Mare River, in the heart of the Apuseni Mountains. The locality is recognized nationally for its spectacular mountain landscapes, the preservation of the traditional crafts of the Moți, such as woodworking, and its active historical role during the uprising of Horea, Cloșca, and Crișan.
• Albaiu — The name of an important mountain peak (Albaiu Peak) and a major mountain ridge located in the Baiului (Gârbova) Mountains massif within the Southern Carpathians, Romania. The area represents a sought-after tourist destination for mountain hiking, offering distinct structural panoramas over the Prahova Valley and the Bucegi massif.
• Albești — The name of numerous localities (communes and villages) in Romania, widespread in counties such as Constanța, Botoșani, Mureș, Vaslui, Teleorman, Buzău, and Ialomița. Capitalized, this core oiconym individualizes historically recognized rural or administrative settlements whose names derive from the patronymic Albu or from the native color base 'alb' (white).
• Albinușa — An official geographical name borne by several small watercourses (brooks), deep valleys, or rural localities on the territory of Romania, traditionally named so due to the historical presence of apiaries or the clarity and purity of the waters.
• Albiș — The name of several rural localities in Romania (such as the Albiș villages in Bihor and Covasna counties); a Romanian surname etymologically derived through suffixation from the baseline color adjective 'alb', historically used to designate bright places or individuals with fair features.
• Alboiță — A regional geographical or hydronymic name attributed to small watercourses (brooks) or narrow valleys within the Romanian area, formed through the diminutive adaptation of the base 'albie' or adjective 'alb' to suggest water clarity or a whitish limestone bed.
• Alboiu — The name of a commune and a village in Olt County, Romania; a Romanian surname widespread in the extra-Carpathian historical regions, derived through onomastic suffixation from the color adjective 'alb', historically used to designate bright settlements or fair-skinned individuals.
• Albotescul — An archaic or regional name borne by a former rural perimeter, estate, valley, or landform feature within the Romanian area, historically associated with the Albotă or Alboteanu surname.
• Albucurei — An archaic, regional, or toponymic name borne in the past by a small rural perimeter, hamlet, pasture, or hydrographic feature within the Romanian area, whose etymology is dialectally linked to the Albulescu surname or nominal compounds based on the 'alb' root.
• Alțina — A historic municipality and locality in Sibiu County, Transylvania, Romania, situated in the Hârtibaciu Valley region; it is an ancient settlement with a rich Saxon cultural heritage, nationally and internationally recognized for its 13th-century fortified evangelical church.
• Amzacea — A locality and commune situated in Constanța County, within the historical region of Dobrogea, Romania. The name is of Turkish origin (preserved from the Ottoman period, etymologically linked to the name Hamza or Amza) and designates a regional rural administrative hub, known for its agricultural activities specific to the Negru Vodă Plateau and its ethnic multiculturalism.
• Andreesti — A Romanian toponym designating several rural localities or small hamlets in Romania (such as Andreești village in Gorj County or Vâlcea County). This structural geographical entity was historically formed based on an estate or settlement founded by the descendants of a local leader named Andrei, preserving its rural character and community traditions within its administrative structure.
• Andresasti — An archaic toponymic form or unregulated old graphic variant of a rural settlement name (such as Andrășești or Andreești), recorded in old maps, administrative deeds, or boundaries within the Romanian space. Structurally, this topic name was formed based on an estate held by the descendants of a local leader named Andreș, reflecting the linguistic evolution of geographical names.
• Aninoasa — The name of several localities and administrative units in Romania (including a town in Hunedoara County and communes in Argeș, Dâmbovița, and Gorj counties), whose name originates etymologically from the abundant presence of alder trees in those respective areas. The town of Aninoasa in the Jiu Valley is historically recognized as a former important coal mining center, currently focused on economic reconversion and tourism.
• Anoaica stream — A regional toponymic designation, proper name attributed to a minor watercourse (stream) or a narrow valley within the geographical area of Romania. In local microtoponymy, the term preserves the structure derived from folk names or native surnames, functioning as a stable cartographic benchmark for delimiting old rural properties or community pastures.
• Anoita valley — A minor regional toponymic designation or rural proper name attributed to a place, a hayfield, or a minor valley within the Carpathian area of Romania. In traditional local microtoponymy, the term represents an archaic derived form functioning as a stable benchmark for rural communities, often indicating old land boundaries or seasonal grazing zones.