List of places by name: A
- Aargau - canton in northern Switzerland
- Aarhus - county in eastern Jutland (Denmark)
- Abia - state in Nigeria
- Abidjan - city in Côte d'Ivoire
- Abkhazia - region in western Georgia
- Abra province in northern Luzon (Philippines)
- Abruzzo - region in central Italy
- Abu Dhabi - city in the United Arab Emirates
- Abuja - city in Nigeria
- Abuja Federal Capital Territory - State in Nigeria
- Accra - city in Ghana
- Aceh - province in northern Sumatra (Indonesia)
- Aconcagua - mountain in Argentina
- Acre - state in western Brazil
- Adamawa - state in Nigeria
- Addis Ababa - city in Ethiopia
- Adygea - federal subject in southwestern Russia
- Afghanistan - nation in southern Asia
- Africa - one of the seven continents
- Agin-Buryat Autonomous Okrug - federal subject in southeastern Siberia (Russia)
- Aguascalientes - state in central Mexico
- Agusan del Norte - province in northeastern Mindanao (Philippines)
- Agusan del Sur - province in northeastern Mindanao (Philippines)
- Aichi - prefecture in southern Honshu (Japan)
- Ain -department in central eastern France
- Aisne - department in northern France
- Akershus - county in southeastern Norway
- Akita - prefecture in northern Honshu (Japan)
- Aklan - province in northern Panay (Philippines)
- Akwa Ibom - state in Nigeria
- Alabama - state in the southeastern United States
- Alagoas - state in eastern Brazil
- Åland - autonomous province of Finland in the Gulf of Bothnia
- Alaska - state of the United States northwest of Canada
- Albania - nation in southeastern Europe
- Albay - province in southeastern Luzon (Philippines)
- Alberta - province in western Canada
- Alexandria - city in Egypt
- Algeria - nation in northwestern Africa
- Algiers - city in Algeria
- Allier - department in central France
- Alpes-de-Haute-Provence - department in southeastern France
- Alpes-Maritimes - department in southeastern France
- Altai Krai - federal subject in south central Siberia (Russia)
- Altai Republic - federal subject in south central Siberia (Russia)
- Amapá - state in northern Brazil
- Amazon - river in South America
- Amazonas - department in southern Colombia
- Amazonas - state in western Brazil
- Amazonas - state in Venezuela
- Amman - city in Jordan
- Amnat Charoen - province in eastern Thailand
- Amsterdam - city in the Netherlands
- Amur Oblast - oblast in southeastern Siberia (Russia)
- Amur - river in Asia
- Anambra - state in Nigeria
- Andalusia - province in southern Spain
- Andhra Pradesh - state in southeastern India
- Andorra - nation in southwestern Europe
- Andorra la Vella - city in Andorra
- An Giang - province in southern Vietnam
- Angola - nation in southwestern Africa
- Ang Thong - province in central Thailand
- Anguilla - province in the eastern Caribbean
- Anhui - province in eastern China
- Ankara - city in Turkey
- Annapurna - mountain in Nepal
- Antananarivo - city in Madagascar
- Antarctica - one of the seven continents
- Antigua and Barbuda - nation in the eastern Caribbean Sea
- Antioquia - department in northwestern Colombia
- Antique - province in western Panay (Philippines)
- Antofagasta - region in northern Chile
- Antwerp - province in northern Belgium
- Aomori - prefecture in northern Honshu (Japan)
- Aosta Valley - region in northwestern Italy
- Apayao - province in northern Luzon (Philippines)
- Apia - city in Samoa
- Appenzell Ausserrhoden - canton in northeastern Switzerland
- Appenzell Innerrhoden - canton in northeastern Switzerland
- Apulia - region in southern Italy
- Aquitaine - region in southwestern France
- Aragon - province in northeastern Spain
- Arauca - department in northeastern Colombia
- Araucania - region in central Chile
- Ardabil - province in northwestern Iran
- Ardèche - department in southeastern France
- Ardennes - department in northeastern France
- Argentina - nation in southern South America
- Ariège - department in southwestern France
- Arizona - state in southwestern United States
- Arkansas - state in south central United States
- Arkhangelsk Oblast - oblast in northern Russia
- Armenia - nation in southwestern Asia
- Arunachal Pradesh - state in eastern India
- Asia - one of the seven continents
- Ashgabat - city in Turkmenistan
- Asmara - city in Eritrea
- Assam - state in eastern India
- Astana - city in Kazakhstan
- Astrakhan Oblast - oblast in southwestern Russia
- Asturias - province in northwestern Spain
- Asunción - city in Paraguay
- Atacama - desert in Chile
- Atacama - region in northern Chile
- Athens - city in Greece
- Atlanta - city in the United States
- Atlántico department in northern Colombia
- Aube - department in northeastern France
- Auckland - City of New Zealand
- Aude - department in southwestern France
- Aurora - province in eastern Luzon (Philippines)
- Aust-Agder - county in southwestern Norway
- Australia - nation/continent southeast of Asia
- Australian Capital Territory - territory in southeastern Australia
- Austria - nation in central Europe
- Auvergne - région in central France
- Aveyron - department in south central France
- Awdal region in northwestern Somalia
- Ayutthaya - province in south central Thailand
- Azad Kashmir - territory in northeastern Pakistan
- Azerbaijan - nation in southwestern Europe