| 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 |
| 乌拉特前旗 | Wū lā tè qián qí | Urat Front banner or Urdyn Ömnöd khoshuu in Bayan Nur 巴彦淖尔, Inner Mongolia |
| 乌拉特后旗 | Wū lā tè hòu qí | Urat Rear banner or Urdyn Xoit khoshuu in Bayan Nur 巴彦淖尔, Inner Mongolia |
| 乌拉特草原 | Wū lā tè cǎo yuán | Urat plain in Bayan Nur 巴彦淖尔, Inner Mongolia |
| 乌拜迪 | wū bài dí | Ubaydi (town in Iraq) |
| 乌日 | Wū rì | Wujih township in Taichung county 台中县, Taiwan |
| 乌日乡 | Wū rì xiāng | Wujih township in Taichung county 台中县, Taiwan |
| 乌普萨拉 | Wū pǔ sà lā | Uppsala, Swedish university city just north of Stockholm |
| 乌木 | wū mù | ebony |
| 乌桕 | wū jiù | Tallow tree; Sapium sebiferum |
| 乌梁海 | Wū liáng hǎi | Mongol surname |
| 乌榄 | wū lǎn | black olive (Canarium tramdenum) |
| 乌洛托品 | wū luò tuō pǐn | hexamine (CH2)6N4 |
| 乌海 | Wū hǎi | Wuhait or Wuhai prefecture level city in Inner Mongolia |
| 乌海市 | Wū hǎi Shì | Wuhait or Wuhai prefecture-level city in Inner Mongolia |
| 乌滋别克 | Wū zī bié kè | Uzbek |
| 乌滋别克斯坦 | Wū zī bié kè sī tǎn | Uzbekistan |
| 乌烟瘴气 | wū yān zhàng qì | foul black smoke atmosphere (idiom); fig. everything in a tremendous mess; pandemonium reigns |
| 乌尔姆 | Wū ěr mǔ | Ulm (city in Germany) |
| 乌尔格 | Wū ěr gé | ancient name of Ulan Bator |
| 乌尔禾 | Wū ěr hé | Urho district (Uighur: Orqu Rayoni) of Qaramay City 克拉玛依市, Xinjiang |
| 乌尔禾区 | Wū ěr hé qū | Urho district (Uighur: Orqu Rayoni) of Qaramay City 克拉玛依市, Xinjiang |
| 乌尔都语 | Wū ěr dū yǔ | Urdu (language) |
| 乌特列支 | Wū tè liè zhī | Utrecht, city in Netherlands |
| 乌当 | Wū dāng | Wudang district of Guiyang city 贵阳市, Guizhou |
| 乌当区 | Wū dāng qū | Wudang district of Guiyang city 贵阳市, Guizhou |
| 乌节路 | wū jié lù | Orchard Road, Singapore (shopping and tourist area) |
| 乌纱帽 | wū shā mào | black hat (worn by feudal official); fig. official post |
| 乌良哈 | Wū liáng hǎ | Mongol surname |
| 乌芋 | wū yù | see 荸荠 |
| 乌兹别克 | Wū zī bié kè | Uzbek; abbr. for Uzbekistan |
| 乌兹别克人 | Wū zī bié kè rén | Uzbek (person) |
| 乌兹别克斯坦 | Wū zī bié kè sī tǎn | Uzbekistan |
| 乌兹别克族 | wū zī bié kè zú | the Uzbek people (race) |
| 乌蓝 | wū lán | dark blue |
| 乌苏市 | Wū sū shì | Wusu city in Tacheng prefecture 塔城地区, Xinjiang |
| 乌苏里斯克 | Wū sū lǐ sī kè | Ussuriisk city in Russian Pacific Primorsky region; previous names include 双城子 and Voroshilov 伏罗希洛夫 |
| 乌兰 | Wū lán | Wulan county in Haixi Mongol and Tibetan autonomous prefecture 海西蒙古族藏族自治州, Qinghai |
