| 421 | Xi Island | China | 18.234899520158965 | 109.36999607598926 | "name"=>"西岛", "name:en"=>"Xi Island", "name:zh"=>"西岛", "alt_name"=>"西瑁洲;Hsi-mei Chou;Xi Dao;Ximao Zhou" | 
      | 422 | Xikuai Isl. | China | 30.172192999724647 | 122.94445169999999 | "name"=>"西块", "name:en"=>"Xikuai Isl." | 
      | 423 | Xiong'er Reef | China | 30.735226799679676 | 123.15564130000001 | "name"=>"熊耳礁", "name:en"=>"Xiong'er Reef" | 
      | 424 | Xitai Island | China | 27.005139628239903 | 120.69643034819667 | "name"=>"西台岛", "name:en"=>"Xitai Island", "name:zh"=>"西台岛" | 
      | 425 | Xiushan Island | China | 30.17459755359761 | 122.16748613943133 | "name"=>"秀山岛", "name:en"=>"Xiushan Island", "name:zh"=>"秀山岛" | 
      | 426 | Xixing Island | China | 26.985730989187932 | 120.46828405798784 | "name"=>"西星岛", "name:en"=>"Xixing Island", "name:zh"=>"西星岛" | 
      | 427 | Xiyang Island | China | 26.509206638359856 | 120.04611210256644 | "name"=>"西洋岛", "name:en"=>"Xiyang Island", "name:zh_pinyin"=>"xīyáng dăo" | 
      | 428 | Xizhong Island | China | 39.43282280018822 | 121.29960960000001 | "name"=>"西中岛", "name:en"=>"Xizhong Island" | 
      | 429 | Ya Dao | China | 35.61389349969938 | 119.8361163 | "name"=>"鸭岛", "name:en"=>"Ya Dao", "name:zh"=>"鸭岛" | 
      | 430 | Yangma Island | China | 37.46550050059203 | 121.61504395473555 | "name"=>"养马岛", "name:en"=>"Yangma Island" | 
      | 431 | Yangtuozi Dao | China | 37.94472699997422 | 120.66915799999998 | "name"=>"羊砣子岛", "name:en"=>"Yangtuozi Dao", "name:zh"=>"羊砣子岛" | 
      | 432 | Yangyu | China | 28.12686244615911 | 121.39166131769734 | "name"=>"洋屿", "name:en"=>"Yangyu", "name:zh"=>"洋屿" | 
      | 433 | Yeli Island | China | 22.282243971926874 | 113.58473465241923 | "name"=>"野狸岛", "name:en"=>"Yeli Island", "name:fr"=>"Ile Yeli", "name:zh"=>"野狸岛", "name:zh_pinyin"=>"Yělí Dao" | 
      | 434 | Yim Tin Tsai | China | 22.45140045465938 | 114.21528245584685 | "name"=>"鹽田仔 Yim Tin Tsai", "name:en"=>"Yim Tin Tsai", "name:zh"=>"鹽田仔" | 
      | 435 | Yin Islet | China | 26.922187709629217 | 120.31212164343852 | "name"=>"银屿", "name:en"=>"Yin Islet", "name:zh"=>"银屿" | 
      | 436 | Yongnan Shoal | China | 16.452621542756493 | 111.65646735107124 | "name"=>"永南暗沙", "name:en"=>"Yongnan Shoal" | 
      | 437 | Yuanshan Island | China | 29.69983590208556 | 122.2322285114872 | "name"=>"元山岛", "name:en"=>"Yuanshan Island", "name:zh"=>"元山岛", "alt_name"=>"悬山岛" | 
      | 438 | Yuanyang Island | China | 26.96027982609907 | 120.37874528871087 | "name"=>"鸳鸯岛", "name:en"=>"Yuanyang Island", "name:zh"=>"鸳鸯岛", "name:zh_pinyin"=>"yuānyāng dǎo" | 
      | 439 | Yuhuan | China | 28.126383808405706 | 121.21242256859553 | "name"=>"玉环岛", "name:en"=>"Yuhuan", "name:zh"=>"玉环岛", "alt_name"=>"Yuhuan;玉环", "name:zh_pinyin"=>"Yùhuán Dǎo" | 
      | 440 | Yuliang Zhou | China | 32.04798138856956 | 112.19565494751166 | "name"=>"鱼梁洲", "name:en"=>"Yuliang Zhou", "name:zh"=>"鱼梁洲", "int_name"=>"Yuliang Zhou" |