| 1 | 欧洲 | 歐洲 | ōu zhōu | Ou1 zhou1 | Europe; abbr. for 欧罗巴洲 | | |
| 2 | 西欧 | 西歐 | xī ōu | Xi1 ou1 | Western Europe | | |
| 3 | 欧美 | 歐美 | ōu měi | Ou1 Mei3 | Europe and America; the West | | |
| 4 | 欧姆 | 歐姆 | ōu mǔ | ou1 mu3 | ohm (loanword) | | |
| 5 | 东欧 | 東歐 | dōng ōu | Dong1 Ou1 | Eastern Europe | | |
| 6 | 欧 | 歐 | ōu | Ou1 | Europe; abbr. for 欧洲 ; surname Ou; (used for transliteration); old variant of 讴 | | |
| 7 | 欧猪 | 歐豬 | ōu zhū | Ou1 zhu1 | (economics) (derog.) PIGS (Portugal, Italy, Greece and Spain); PIIGS (Portugal, Italy, Ireland, Greece and Spain) | | |
| 8 | 欧咪呀给 | 歐咪呀給 | ōu mī yā gěi | ou1 mi1 ya1 gei3 | (Tw) gift given when visiting sb (esp. a local specialty brought back from one's travels, or a special product of one's own country taken overseas) (loanword from Japanese "omiyage") | | |
| 9 | 欧纳西斯 | 歐納西斯 | ōu nà xī sī | Ou1 na4 xi1 si1 | see 奥纳西斯 | | |
| 10 | 玛俐欧 | 瑪俐歐 | mǎ lì ōu | Ma3 li4 ou1 | Mario (Nintendo video game character); also transcribed variously as 马里奥 etc | | |
| 11 | 欧宝 | 歐寶 | ōu bǎo | Ou1 bao3 | Opel (car brand) | | |
| 12 | 欧斑鸠 | 歐斑鳩 | ōu bān jiū | Ou1 ban1 jiu1 | (bird species of China) European turtle dove (Streptopelia turtur) | | |
| 13 | 欧巴桑 | 歐巴桑 | ōu ba sāng | ou1 ba5 sang1 | older female; woman of mature years (Japanese loanword) | | |
| 14 | 欧巴 | 歐巴 | ōu bā | ou1 ba1 | (female usage) older brother (loanword from Korean "oppa"); male friend | | |
| 15 | 欧安组织 | 歐安組織 | ōu ān zǔ zhī | Ou1 An1 Zu3 zhi1 | Organization for Security and Cooperation in Europe (OSCE), abbr. for 欧洲安全与合作组织 | | |
| 16 | 南欧 | 南歐 | nán ōu | Nan2 Ou1 | Southern Europe | | |
| 17 | 穆罕默德・欧玛 | 穆罕默德・歐瑪 | mù hǎn mò dé · ōu mǎ | Mu4 han3 mo4 de2 · Ou1 ma3 | Mullah Mohammad Omar (1959-), Taliban leader, Afghan head of state 1996-2001; Mullah Mohammad Omar (1959-), Taliban leader, Afghan head of state 1996-2001 | | |
| 18 | 罗密欧与朱丽叶 | 羅密歐與朱麗葉 | luó mì ōu yǔ zhū lì yè | Luo2 mi4 ou1 yu3 Zhu1 li4 ye4 | Romeo and Juliet, 1594 tragedy by William Shakespeare 莎士比亚 | | |
| 19 | 罗密欧 | 羅密歐 | luó mì ōu | Luo2 mi4 ou1 | Romeo (name) | | |
| 20 | 卡西欧 | 卡西歐 | kǎ xī ōu | Ka3 xi1 ou1 | Casio | | |
| 21 | 非欧几何学 | 非歐幾何學 | fēi ōu jǐ hé xué | fei1 ou1 ji3 he2 xue2 | non-Euclidean geometry | | |
| 22 | 非欧几何 | 非歐幾何 | fēi ōu jǐ hé | fei1 ou1 ji3 he2 | non-Euclidean geometry | | |
| 23 | 碧欧泉 | 碧歐泉 | bì ōu quán | Bi4 ou1 quan2 | Biotherm (brand name) | | |
| 24 | 皱叶欧芹 | 皺葉歐芹 | zhòu yè ōu qín | zhou4 ye4 ou1 qin2 | curled-leaf parsley (Petroselinum crispum) | | |
| 25 | 北欧 | 北歐 | běi ōu | Bei3 Ou1 | north Europe; Scandinavia | | |