| 阿尔加维 | Ā ěr jiā wéi | the Algarve (southern region of Portugal) |
| 阿尔卑斯 | Ā ěr bēi sī | Alps, mountain range bordering Switzerland |
| 阿尔卑斯山 | Ā ěr bēi sī shān | Alps, mountain range bordering Switzerland |
| 阿尔卡特 | Ā ěr kǎ tè | Alcatel, old company name |
| 阿尔及利亚人 | Ā ěr jí lì yà rén | Algerian |
| 阿尔坎塔拉 | Ā ěr kǎn tǎ lā | Alcántara, municipality in the province of Cáceres, Extremadura, Spain; Alcantara, Brazil space launch site |
| 阿尔山 | Ā ěr shān | Arxan county level city, Mongolian Rashaant xot, in Hinggan league 兴安盟, east Inner Mongolia |
| 阿尔山市 | Ā ěr shān shì | Arxan county level city, Mongolian Rashaant xot, in Hinggan league 兴安盟, east Inner Mongolia |
| 阿尔巴尼亚人 | Ā ěr bā ní yà rén | Albanian (person) |
| 阿尔斯通公司 | Ā ěr sī tōng gōng sī | Alstom, company name |
| 阿尔梅里亚 | Ā ěr méi lǐ yà | Almería |
| 阿尔法 | ā ěr fǎ | alpha (Greek letter Αα) |
| 阿尔法・罗密欧 | Ā ěr fǎ · Luó mì ōu | Alfa Romeo |
| 阿尔法粒子 | ā ěr fǎ lì zǐ | alpha particle (helium nucleus) |
| 阿尔泰 | Ā ěr tài | Altai republic in Russian central Asia, capital Gorno-Altaysk |
| 阿尔泰山脉 | Ā ěr tài shān mài | Altai mountain chain on the border of Russia and Mongolia |
| 阿尔泰语 | Ā ěr tài yǔ | Altaic language |
| 阿尔汉格尔斯克州 | Ā ěr hàn gé ěr sī kè zhōu | Arkhangelsk Oblast, Russia |
| 阿尔瓦塞特 | Ā ěr wǎ sè tè | Albacete, Spain |
| 阿尔瓦雷 | Ā ěr wǎ léi | Alvarez (name) |
| 阿尔茨海默 | Ā ěr cí hǎi mò | Alois Alzheimer (1864-1915), German psychiatrist and neuropathologist |
| 阿尔茨海默氏病 | Ā ěr cí hǎi mò shì bìng | Alzheimer's disease; senile dementia |
| 阿尔茨海默氏症 | Ā ěr cí hǎi mò shì zhèng | Alzheimer's disease; senile dementia |
| 阿尔茨海默病 | Ā ěr cí hǎi mò bìng | Alzheimer's disease; senile dementia |
| 阿尔茨海默症 | Ā ěr cí hǎi mò zhèng | Alzheimer's disease; senile dementia |
| 阿尔盖达 | Ā ěr Gài dá | al-Qaeda |
| 阿尔萨斯 | Ā ěr sà sī | Alsace, French department |
| 阿尔衮琴 | Ā ěr gǔn qín | Algonquin (North American people) |
| 阿尔都塞 | Ā ěr dōu sāi | surname Althusser; Louis Pierre Althusser 路易・皮埃尔・阿尔都塞[Lu4 yi4 · Pi2 ai1 er3 · A1 er3 dou1 sai1] (1918-1990), Marxist philosopher |
| 阿片 | ā piàn | opium; variant of 鸦片 |
| 阿物儿 | ā wùr | thing; (you) useless thing |
| 阿特拉斯 | Ā tè lā sī | Atlas (Titan in Greek mythology); Atlas mountains of north Africa |
| 阿特兰蒂斯 | Ā tè lán dì sī | Atlantis |
| 阿特金斯 | Ā tè jīn sī | Atkins (name) |
| 阿瑞斯 | Ā ruì sī | Ares, Greek god of war; Mars |
| 阿瑟 | Ā sè | Arthur (name) |
| 阿瑟县 | Ā sè xiàn | Arthur County, Nebraska |
| 阿瑟镇 | Ā sè zhèn | Arthur's Town, Cat Island |
| 阿瓦提 | Ā wǎ tí | Avat nahiyisi (Awat county) in Aksu 阿克苏地区, west Xinjiang |
| 阿瓦提县 | Ā wǎ tí xiàn | Avat nahiyisi (Awat county) in Aksu 阿克苏地区, west Xinjiang |
| 阿瓦里德 | Ā wǎ lǐ dé | Prince Alwaleed Bin Talal al-Saud of Saudi Arabia |
| 阿瓦鲁阿 | Ā wǎ lǔ ā | Avarua, capital of the Cook Islands |
| 阿甘正传 | ā gān zhèng zhuàn | Forrest Gump |
| 阿留申群岛 | Ā liú shēn qún dǎo | Aleutian islands (trailing 2250 km southwest of Alaska almost down to Kamtchatka) |
| 阿的平 | ā dì píng | atabrine or quinacrine, used as antimalarial drug and antibiotic against intestinal parasite giardiasis |
| 阿皮亚 | Ā pí yà | Apia, capital of the Independent State of Samoa |
| 阿盟 | Ā méng | Alxa league, a prefecture level subdivision of Inner Mongolia; abbr. for 阿拉善盟 |
| 阿卢巴 | Ā lú bā | Aruba, variant of 阿鲁巴 |
| 阿穆尔河 | Ā mù ěr hé | the Amur River (the border between north east China and Russia); same as 黑龙江 |
| 阿空加瓜 | Ā kōng jiā guā | Cerro Aconcagua, mountain in the Americas |
