| 乌 | wū | crow; black; abbr. for Ukraine 乌克兰; surname Wu |
| 乌干达 | Wū gān dá | Uganda |
| 乌云 | wū yún | black cloud |
| 乌鲁木齐 | Wū lǔ mù qí | Ürümqi or Urumqi prefecture level city and capital of Xinjiang Uighur autonomous region 新疆维吾尔自治区 in west China |
| 乌克兰 | Wū kè lán | Ukraine |
| 乌鸦 | wū yā | crow; raven |
| 乌黑 | wū hēi | jet-black; dark |
| 乌托邦 | wū tuō bāng | utopia |
| 乌桓 | Wū huán | Wuhuan (nomadic tribe) |
| 乌龙茶 | wū lóng chá | Oolong tea |
| 乌苏 | Wū sū | Wusu city in Tacheng prefecture 塔城地区, Xinjiang |
| 乌苏里江 | Wū sū lǐ jiāng | Ussuri River |
| 乌龟 | wū guī | tortoise; cuckold |
| 乌达 | Wū dá | Ud raion or Wuda district of Wuhait city 乌海市, Inner Mongolia |
| 乌尔 | Wū ěr | Ur (Sumerian city c. 4500 BC in modern Iraq) |
| 乌七八糟 | wū qī bā zāo | everything in disorder; in a hideous mess; obscene; dirty; filthy (idiom) |
| 乌什 | Wū shí | Uchturpan nahiyisi (Uqturpan county) in Aksu 阿克苏地区, west Xinjiang |
| 乌什塔拉 | Wū shén tǎ lā | Wushentala Hui village in Bayin'guoleng Mongol autonomous prefecture 巴音郭愣蒙古自治州, Xinjiang |
| 乌什塔拉回族乡 | Wū shén tǎ lā Huí zú xiāng | Wushentala Hui village in Bayin'guoleng Mongol autonomous prefecture 巴音郭愣蒙古自治州, Xinjiang |
| 乌什塔拉乡 | Wū shén tǎ lā xiāng | Wushentala Hui village in Bayin'guoleng Mongol autonomous prefecture 巴音郭愣蒙古自治州, Xinjiang |
| 乌什县 | Wū shí xiàn | Uchturpan nahiyisi (Uqturpan county) in Aksu 阿克苏地区, west Xinjiang |
| 乌伊岭 | Wū yī lǐng | Wuyiling district of Yichun city 伊春市, Heilongjiang |
| 乌伊岭区 | Wū yī lǐng qū | Wuyiling district of Yichun city 伊春市, Heilongjiang |
| 乌来 | Wū lái | Wulai township in Taipei county 台北县, Taiwan |
| 乌来乡 | Wū lái xiāng | Wulai township in Taipei county 台北县, Taiwan |
| 乌伦古河 | Wū lún gǔ hé | Ulungur River in Xinjiang |
| 乌伦古湖 | Wū lún gǔ hú | Lake Ulungur in Xinjiang |
| 乌克兰人 | Wū kè lán rén | Ukrainian (person) |
| 乌克丽丽 | wū kè lì lì | ukulele; simplified form also written 尤克里里琴 |
| 乌冬面 | wū dōng miàn | udon noodles |
| 乌合之众 | wū hé zhī zhòng | mob |
| 乌丘 | Wū qiū | Wuchiu township in Kinmen County 金门县 (Kinmen or Quemoy islands), Taiwan |
| 乌丘乡 | Wū qiū xiāng | Wuchiu township in Kinmen County 金门县 (Kinmen or Quemoy islands), Taiwan |
| 乌塌菜 | wū tā cài | rosette bok choy (Brassica rapa var. rosularis) |
| 乌压压 | wū yā yā | forming a dense mass |
| 乌孜别克 | Wū zī bié kè | Uzbek ethnic group of Xinjiang |
| 乌孜别克族 | Wū zī bié kè zú | Uzbek ethnic group of Xinjiang |
| 乌孜别克语 | Wū zī bié kè yǔ | Uzbek language |
| 乌孙国 | Wū sūn guó | Wusun kingdom of central Asia (c. 300 BC-300 AD) |
| 乌审 | Wū shěn | Uxin or Wushen banner in southwest Ordos prefecture 鄂尔多斯, Inner Mongolia |
| 乌审旗 | Wū shěn qí | Uxin or Wushen banner in southwest Ordos prefecture 鄂尔多斯, Inner Mongolia |
| 乌德勒支 | wū dé lè zhī | Utrecht |
| 乌恰 | Wū qià | Wuqia county in Xinjiang |
| 乌恰县 | Wū qià xiàn | Wuqia county in Xinjiang |
| 乌拉圭 | Wū lā guī | Uruguay |
| 乌拉尔 | Wū lā ěr | the Ural mountains in Russia, dividing Europe from Asia |
| 乌拉尔山 | Wū lā ěr shān | the Ural mountains in Russia, dividing Europe from Asia |
| 乌拉尔山脉 | wū lā ěr shān mài | Ural Mountains |
| 乌拉特 | Wū lā tè | Urat plain in Bayan Nur 巴彦淖尔, Inner Mongolia; also Urat Front, Center and Rear banners |
| 乌拉特中旗 | Wū lā tè zhōng qí | Urat Center banner or Urdyn Dund khoshuu in Bayan Nur 巴彦淖尔, Inner Mongolia |
