| 乌克兰 | Wū kè lán | Ukraine |  |
| 乌拉圭 | Wū lā guī | Uruguay |  |
| 乌龙茶 | wū lóng chá | oolong tea |  |
| 乌托邦 | wū tuō bāng | (loanword) utopia |  |
| 乌干达 | Wū gān dá | Uganda |  |
| 乌鸦嘴 | wū yā zuǐ | crow's beak / (fig.) person who makes an inauspicious remark |  |
| 乌纱帽 | wū shā mào | black gauze hat (worn by an imperial official as a sign of his position) / (fig.) official post |  |
| 乌拉尔 | Wū lā ěr | the Ural mountains in Russia, dividing Europe from Asia |  |
| 乌龙球 | wū lóng qiú | own goal (ball sports) |  |
| 乌骨鸡 | wū gǔ jī | black-boned chicken / silky fowl / silkie / Gallus gallus domesticus Brisson |  |
| 乌龟壳 | wū guī ké | tortoise shell |  |
| 乌拜迪 | Wū bài dí | Ubaydi (town in Iraq) |  |
| 乌当区 | Wū dāng qū | Wudang District of Guiyang City 貴陽市|贵阳市[Gui4 yang2 Shi4], Guizhou |  |
| 乌达区 | Wū dá Qū | Ud raion or Wuda District of Wuhait City 烏海市|乌海市[Wu1 hai3 Shi4], Inner Mongolia |  |
| 乌德琴 | wū dé qín | oud |  |
| 乌雕鸮 | wū diāo xiāo | (bird species of China) dusky eagle-owl (Ketupa coromanda) |  |
| 乌东德 | Wū dōng dé | Wudongde, the name of a hydroelectric dam on the Jinsha River 金沙江[Jin1 sha1 jiang1] at a point where the river forms a border between Yunnan and Sichuan |  |
| 乌冬面 | wū dōng miàn | udon noodles |  |
| 乌尔格 | Wū ěr gé | ancient name of Ulan Bator |  |
| 乌尔禾 | Wū ěr hé | Orku District of Karamay City 克拉瑪依市|克拉玛依市[Ke4 la1 ma3 yi1 Shi4], Xinjiang |  |
| 乌尔肯 | wū ěr kěn | Vulcan |  |
| 乌尔姆 | Wū ěr mǔ | Ulm (city in Germany) |  |
| 乌鲂科 | wū fáng kē | pomfret / seabream |  |
| 乌饭果 | wū fàn guǒ | blueberry |  |
| 乌咖哩 | wū gā lí | ugali / nshima |  |
| 乌海市 | Wū hǎi Shì | Wuhai, prefecture-level city in Inner Mongolia Autonomous Region 內蒙古自治區|内蒙古自治区[Nei4meng3gu3 Zi4zhi4qu1] |  |
| 乌黑色 | wū hēi sè | black / crow-black |  |
| 乌灰鸫 | wū huī dōng | (bird species of China) Japanese thrush (Turdus cardis) |  |
| 乌灰鹞 | wū huī yào | (bird species of China) Montagu's harrier (Circus pygargus) |  |
| 乌节路 | wū jié lù | Orchard Road, Singapore (shopping and tourist area) |  |
| 乌拉草 | wù la cǎo | Carex meyeriana |  |
| 乌来乡 | Wū lái xiāng | Wulai township in New Taipei City 新北市[Xin1 bei3 shi4], Taiwan |  |
| 乌兰夫 | Wū lán fū | Ulanhu (1906-1988), Soviet-trained Mongolian communist who became important PRC military leader |  |
| 乌兰县 | Wū lán xiàn | Wulan county in Haixi Mongol and Tibetan autonomous prefecture 海西蒙古族藏族自治州[Hai3 xi1 Meng3 gu3 zu2 Zang4 zu2 zi4 zhi4 zhou1], Qinghai |  |
| 乌拉特 | Wū lā tè | Urat plain in Bayan Nur 巴彥淖爾|巴彦淖尔[Ba1 yan4 nao4 er3], Inner Mongolia / also Urat Front, Center and Rear banners |  |
| 乌良哈 | Wū liáng hǎ | Mongol surname |  |
| 乌梁海 | Wū liáng hǎi | Mongol surname |  |
| 乌林鸮 | wū lín xiāo | (bird species of China) great grey owl (Strix nebulosa) |  |
| 乌黎雅 | Wū lí yǎ | Uriah (name) |  |
| 乌龙面 | wū lóng miàn | udon, a thick Japanese-style wheat-flour noodle |  |
| 乌龙指 | wū lóng zhǐ | fat finger error (finance) |  |
| 乌鲁鲁 | Wū lǔ lǔ | Uluru, massive sandstone outcrop in central Australia |  |
| 乌鲁汝 | Wū lǔ rǔ | Uluru, iconic large rock formation in central Australia, sacred to Aboriginals, a World Heritage Site / also known as Ayers Rock |  |
| 乌马河 | Wū mǎ hé | Wumahe district of Yichun city 伊春市[Yi1 chun1 shi4], Heilongjiang |  |
| 乌讷楚 | Wū nè chǔ | Uxin or Wushen banner in southwest Ordos prefecture 鄂爾多斯|鄂尔多斯[E4 er3 duo1 si1], Inner Mongolia |  |
| 乌恰县 | Wū qià xiàn | Wuqia county in Xinjiang |  |
| 乌丘乡 | Wū qiū xiāng | Wuchiu township in Kinmen County 金門縣|金门县[Jin1 men2 xian4] (Kinmen or Quemoy islands), Taiwan |  |
| 乌齐雅 | Wū qí yǎ | Uzziah son of Amaziah, king of Judah c. 750 BC |  |
| 乌日乡 | Wū rì xiāng | Wujih township in Taichung county 臺中縣|台中县[Tai2 zhong1 xian4], Taiwan |  |
| 乌审旗 | Wū shěn qí | Uxin or Wushen banner in southwest Ordos prefecture 鄂爾多斯|鄂尔多斯[E4 er3 duo1 si1], Inner Mongolia |  |
| 乌什县 | Wū shí xiàn | Uchturpan nahiyisi (Uqturpan county) in Aksu 阿克蘇地區|阿克苏地区[A1 ke4 su1 di4 qu1], west Xinjiang |  |
| 乌孙国 | Wū sūn guó | Wusun kingdom of central Asia (c. 300 BC-300 AD) |  |
| 乌苏市 | Wū sū shì | Wusu city in Tacheng prefecture 塔城地區|塔城地区[Ta3 cheng2 di4 qu1], Xinjiang |  |
| 乌塌菜 | wū tā cài | rosette bok choy (Brassica rapa var. rosularis) |  |
| 乌西亚 | Wū xī yà | Uzziah (son of Joram) |  |
| 乌燕鸥 | wū yàn ōu | (bird species of China) sooty tern (Onychoprion fuscatus) |  |
| 乌压压 | wū yā yā | forming a dense mass |  |
| 乌鸦座 | Wū yā zuò | Corvus (constellation) |  |
| 乌伊岭 | Wū yī lǐng | Wuyiling district of Yichun city 伊春市[Yi1 chun1 shi4], Heilongjiang |  |
| 乌鱼子 | wū yú zǐ | mullet roe (salted and dried) / bottarga |  |
| 乌鲁木齐 | Wū lǔ mù qí | see 烏魯木齊市|乌鲁木齐市[Wu1lu3mu4qi2 Shi4] |  |
| 乌烟瘴气 | wū yān zhàng qì | billowing smoke (idiom) / foul atmosphere / (fig.) murky atmosphere / in a turmoil |  |
| 乌合之众 | wū hé zhī zhòng | (idiom) rabble / disorderly band |  |
| 乌兹别克 | Wū zī bié kè | Uzbek / abbr. for Uzbekistan |  |
| 乌兰察布 | Wū lán chá bù | see 烏蘭察布市|乌兰察布市[Wu1lan2cha2bu4 Shi4] |  |
| 乌苏里江 | Wū sū lǐ jiāng | Ussuri River |  |
| 乌七八糟 | wū qī bā zāo | everything in disorder (idiom) / in a hideous mess / obscene / dirty / filthy |  |
| 乌克兰人 | Wū kè lán rén | Ukrainian (person) |  |
| 乌尔都语 | Wū ěr dū yǔ | Urdu (language) |  |
| 乌鸟私情 | wū niǎo sī qíng | lit. the solicitude of the crow (who provides for his old parent)(idiom) / fig. filial piety |  |
| 乌德勒支 | wū dé lè zhī | Utrecht |  |
| 乌尔根奇 | Wū ěr gēn qí | Urgench, city in Uzbekistan |  |
| 乌尔禾龙 | wū ěr hé lóng | Wuerhosaurus |  |
| 乌尔禾区 | Wū ěr hé qū | Orku District of Karamay City 克拉瑪依市|克拉玛依市[Ke4 la1 ma3 yi1 Shi4], Xinjiang |  |
| 乌尔特河 | wū ěr tè hé | Ourthe |  |
| 乌灰银鸥 | wū huī yín ōu | (bird species of China) lesser black-backed gull (Larus fuscus) |  |
| 乌克丽丽 | wū kè lì lì | (Tw) ukulele (loanword) |  |
| 乌拉尔山 | Wū lā ěr shān | the Ural mountains in Russia, dividing Europe from Asia |  |
| 乌兰巴托 | Wū lán bā tuō | Ulaanbaatar or Ulan Bator, capital of Mongolia |  |
| 乌兰浩特 | Wū lán hào tè | Wulanhaote, county-level city, Mongolian Ulaan xot, in Hinggan league 興安盟|兴安盟[Xing1 an1 meng2], east Inner Mongolia |  |
| 乌蔹莓属 | wū liǎn méi shǔ | Cayratia |  |
| 乌伦古河 | Wū lún gǔ Hé | Ulungur River in Xinjiang |  |
| 乌伦古湖 | Wū lún gǔ Hú | Ulungur Lake in Xinjiang |  |
| 乌洛托品 | wū luò tuō pǐn | hexamine (CH2)6N4 |  |
| 乌马河区 | Wū mǎ hé qū | Wumahe district of Yichun city 伊春市[Yi1 chun1 shi4], Heilongjiang |  |
| 乌普萨拉 | Wū pǔ sà lā | Uppsala, Swedish university city just north of Stockholm |  |
| 乌漆抹黑 | wū qī mā hēi | see 烏漆墨黑|乌漆墨黑[wu1 qi1 mo4 hei1] |  |
| 乌漆墨黑 | wū qī mò hēi | jet-black / pitch-dark |  |
| 乌什塔拉 | Wū shén tǎ lā | Wushentala Hui village in Bayingolin Mongol Autonomous Prefecture 巴音郭楞蒙古自治州[Ba1 yin1 guo1 leng2 Meng3 gu3 Zi4 zhi4 zhou1], Xinjiang |  |
| 乌什塔拉 | Wū shí tǎ lā | Wushitala Hui village in Bayingolin Mongol Autonomous Prefecture 巴音郭楞蒙古自治州[Ba1 yin1 guo1 leng2 Meng3 gu3 Zi4 zhi4 zhou1], Xinjiang |  |
| 乌特列支 | Wū tè liè zhī | Utrecht, city in Netherlands |  |
| 乌泱乌泱 | wū yāng wū yāng | in great number |  |
| 乌叶猴属 | wū yè hóu shǔ | lutung |  |
| 乌伊岭区 | Wū yī lǐng qū | Wuyiling district of Yichun city 伊春市[Yi1 chun1 shi4], Heilongjiang |  |
| 乌孜别克 | Wū zī bié kè | Uzbek ethnic group of Xinjiang |  |
| 乌滋别克 | Wū zī bié kè | Uzbek |  |
| 乌嘴柳莺 | wū zuǐ liǔ yīng | (bird species of China) large-billed leaf warbler (Phylloscopus magnirostris) |  |
| 乌拉圭宣言 | | Uruguay Declaration |  |
| 乌尔霍博人 | | Urhobo |  |
| 乌拉尔山脉 | Wū lā ěr Shān mài | Ural Mountains |  |
| 乌拉圭回合 | wū lā guī huí hé | Uruguay Round |  |
| 乌兰察布市 | Wū lán chá bù shì | Ulanqab, prefecture-level city in Inner Mongolia Autonomous Region 內蒙古自治區|内蒙古自治区[Nei4meng3gu3 Zi4zhi4qu1] |  |
| 乌兰浩特市 | Wū lán hào tè shì | Wulanhaote, county-level city, Mongolian Ulaan xot, in Hinggan league 興安盟|兴安盟[Xing1 an1 meng2], east Inner Mongolia |  |
| 乌拉特草原 | Wū lā tè cǎo yuán | Urat plain in Bayan Nur 巴彥淖爾|巴彦淖尔[Ba1 yan4 nao4 er3], Inner Mongolia |  |
| 乌拉特后旗 | Wū lā tè hòu qí | Urat Rear banner or Urdyn Xoit khoshuu in Bayan Nur 巴彥淖爾|巴彦淖尔[Ba1 yan4 nao4 er3], Inner Mongolia |  |
| 乌拉特前旗 | Wū lā tè qián qí | Urat Front banner or Urdyn Ömnöd khoshuu in Bayan Nur 巴彥淖爾|巴彦淖尔[Ba1 yan4 nao4 er3], Inner Mongolia |  |
| 乌拉特中旗 | Wū lā tè zhōng qí | Urat Center banner or Urdyn Dund khoshuu in Bayan Nur 巴彥淖爾|巴彦淖尔[Ba1 yan4 nao4 er3], Inner Mongolia |  |
| 乌里雅苏台 | Wū lǐ yǎ sū tái | Uliastai, the Qing name for outer Mongolia |  |
| 乌鲁克恰提 | Wū lǔ kè qià tí | Wuqia county in Xinjiang / name of county in Xinjiang from early 20th century now called Wuqia 烏恰縣|乌恰县 |  |
| 乌鲁木齐市 | Wū lǔ mù qí Shì | Ürümqi, prefecture-level city and capital of Xinjiang Uighur Autonomous Region 新疆維吾爾自治區|新疆维吾尔自治区[Xin1jiang1 Wei2wu2er3 Zi4zhi4qu1] |  |