| 欧洲 | Ōu zhōu | Europe; European |
| 欧 | ōu | (used for transliteration); old variant of 讴; Europe; abbr. for 欧洲; surname Ou |
| 西欧 | xī ōu | Western Europe |
| 欧姆 | ōu mǔ | ohm |
| 东欧 | Dōng Ōu | Eastern Europe |
| 欧文 | Ōu wén | Owen (name); Erwin (name) |
| 北欧 | Běi Ōu | north Europe; Scandinavia |
| 中欧 | Zhōng Ōu | China-Europe (e.g. trading relations); Central Europe |
| 欧几里得 | Ōu jǐ lǐ dé | Euclid of Alexandria (c. 300 BC), Greek geometer and author Elements 几何原本 |
| 欧阳 | Ōu yáng | two-character surname Ouyang |
| 南欧 | Nán Ōu | Southern Europe |
| 东欧平原 | Dōng Ōu píng yuán | East European Plain |
| 欧洲共同体 | Ōu zhōu Gòng tóng tǐ | European Community, old term for EU, European Union 欧盟 |
一个幽灵在欧洲游
荡 | Yī gè yōu líng zài Ōu zhōu yóu dàng | Ein Gespenst geht um in Europa.; the opening sentence of Marx and Engels' "Communist Manifesto" |
| 亚欧 | Yà Ōu | Asia and Europe; Eurasian (continent); same as 欧亚 |
| 亚欧大陆 | Yà ōu dà lù | Eurasian continent |
| 亚欧大陆桥 | yà ōu dà lù qiáo | New Asia-Europe Land Bridge; rail line from China through Central Asia to Europe |
| 亚欧大陆腹地 | Yà ōu dà lù fù dì | Eurasian hinterland (i.e. Central Asia including Xinjiang) |
| 杰西・欧文斯 | Jié xī · Ōu wén sī | Jesse Owens (1913-1980), American athlete |
| 北欧航空公司 | Běi Ōu háng kōng gōng sī | Scandinavian airlines system, SAS |
| 卡西欧 | Kǎ xī ōu | Casio |
| 印欧人 | yìn ōu rén | Indo-European (person) |
| 印欧文 | yìn ōu wén | Indo-European (language) |
| 印欧语 | yìn ōu yǔ | Indo-European (language) |
| 印欧语系 | Yìn Ōu yǔ xì | Indo-European system of languages |
| 印欧语言 | yìn ōu yǔ yán | Indo-European (language) |
| 欧亚 | Ōu Yà | Asia and Europe; Eurasian (continent); same as 欧亚 |
| 欧亚大陆 | Ōu yà dà lù | Eurasia |
| 欧仁 | Ōu rén | Eugene (name) |
| 欧伯林 | Ōu bó lín | Oberlin |
| 欧佩克 | ōu pèi kè | OPEC; Organization of the Petroleum Exporting Countries |
| 欧元 | Ōu yuán | Euro (currency) |
| 欧元区 | Ōu yuán qū | Eurozone |
| 欧共体 | Ōu gòng tǐ | abbr. for 欧洲共同体, European Community (old term for the EU, European Union) |
| 欧分 | ōu fēn | Eurocent |
| 欧吉桑 | ōu jí sāng | uncle (Japanese loanword, respectful appellation for any older man) |
| 欧安组织 | Ōu ān zǔ zhī | Organization for Security and Cooperation in Europe (OSCE), abbr. for 欧洲安全与合作组织 |
| 欧宝 | Ōu bǎo | Opel (car brand) |
| 欧巴桑 | ōu ba sāng | aunt (Japanese loanword, respectful appellation for any older female) |
| 欧巴马 | Ōu bā mǎ | Taiwanese variant of 奥巴马, Barack Obama (1961-), US Democrat politician, Senator for Illinois from 2005, president from 2009 |
| 欧几里德 | Ōu jǐ lǐ dé | Euclid of Alexandria (c. 300 BC), Greek geometer and author of Elements 几何原本 |
| 欧式 | ōu shì | in the European style; Euclidean |
| 欧式几何 | ōu shì jǐ hé | Euclidean geometry |
| 欧式几何学 | ōu shì jǐ hé xué | Euclidean geometry |
| 欧拉 | Ōu lā | Leonhard Euler (1707-1783), Swiss mathematician |
| 欧文斯 | Ōu wén sī | Owens (name) |
| 欧柏林 | Ōu bó lín | Oberlin |
| 欧查果 | ōu chá guǒ | medlar |
| 欧氏 | Ōu shì | Euclid; abbr. for 欧几里得 |
| 欧氏几何学 | Ōu shì jǐ hé xué | Euclidean geometry |
