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 Flag.png) | Magway Region (Myanmar (Burma)) |
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| Western (Fiji) |
| Western Australia (Australia) |
| Western District (American Samoa) |
| Western Highlands Province (Papua New Guinea) |
| Western Province (Sri Lanka) |
| Western Province (Solomon Islands) |
| Western Province (Papua New Guinea) |
| Western Visayas (Philippines) |
| Wong Tai Sin District (Hong Kong) |
| Wotho Atoll (Marshall Islands) |
| Wotje Atoll (Marshall Islands) |
| Xaignabouli (Laos) |
| Xaisomboun (Laos) |
| Xankandi Sahari (Azerbaijan) |
| Xiangkhouang (Laos) |
| Xinjiang (China) |
| Xorazm Region (Uzbekistan) |
| Yala (Thailand) |
| Yalova (Turkey) |
| Yamagata (Japan) |
| Yamaguchi (Japan) |
| Yamanashi (Japan) |
| Yangon (Myanmar (Burma)) |
| Yap State (Micronesia) |
| Yaracuy (Venezuela) |
| Yardimli District (Azerbaijan) |
| Yaren District (Nauru) |
| Yasothon (Thailand) |
| Yau Tsim Mong District (Hong Kong) |
| Yazd Province (Iran) |
| Yerevan (Armenia) |
| Yevlakh Rayon (Azerbaijan) |
| Yevlax City (Azerbaijan) |
| Yigo (Guam) |
| Yogyakarta (Indonesia) |
| Yona (Guam) |
| Yozgat (Turkey) |
| Yuen Long District (Hong Kong) |
| Yunnan (China) |
| Zabul (Afghanistan) |
| Zamboanga Peninsula (Philippines) |
| Zamora Chinchipe (Ecuador) |
| Zangilan District (Azerbaijan) |
| Zanjan (Iran) |
| Zaqatala District (Azerbaijan) |
| Zardab Rayon (Azerbaijan) |
| Zarqa (Jordan) |
| Zhambyl Oblysy (Kazakhstan) |
| Zhejiang (China) |
| Zhemgang District (Bhutan) |
| Zonguldak Province (Turkey) |
| Zulia (Venezuela) |
 Islands Flag.png){kind=small}
