'''中沙諸島'''（ちゅうさしょとう、珊瑚礁は存在しないため、しばしば国連海洋法条約上の「島」に該当しないとの指摘を受ける。

中沙諸島は南シナ海の他の島と同様、近くの海域に漁業資源が豊富で石油や天然ガスが眠っている可能性がある。また、浅瀬であるため近隣の海域の航行は困難である。

中華人民共和国、中華民国（台湾）、フィリピンが主権を主張しているが、現在のところ軍隊は進駐していない。

right|300px|thumb|中沙諸島
right|300px|thumb|南シナ海　中沙諸島は図中の上部四角枠の右下隅「Macclesfield Bank」
細長い環礁の構成物：
*魯班暗灘（''Carpenter Shoal''）
*立父暗沙（''Oliver Shoal''）
*本固暗沙（''Bangkok Shoal''）
*西門暗沙（''Siamese Shoal''）
*華夏暗沙（''Cathay Shoal''）
*排洪灘（''Penguin Shoal''）
*伏洑暗沙／波洑暗沙（''Balfour Shoal''）
*比微暗沙（''Pigmy Shoal''）
*隱磯灘（''Egeria Shoal''）
*武勇暗沙（''Howard Shoal''）
*樂西暗沙（''Philips Shoal''）
*濟猛暗沙（''Learmonth Shoal''）
*海鳩暗沙（''Plover Shoal''）
*美溪暗沙（''Smith Shoal''）

left|200px|thumb|South China Sea with Macclesfield Bank
'''Macclesfield Bank''' or '''Zhongsha Islands''' (Chinese 中沙群島 Vietnamese: ''Quần đảo Trung Sa'', literally ''Central Sand Islands'') is an elongated sunken atoll of underwater reefs and shoals in South China Sea and part of the disputed South China Sea Islands, centered around , east of the Paracel Islands. Its length exceeds 130 km southwest-northeast, with a maximal width of more than 70 km. With an area of 6448 km² within the outer rim of the reef[ftp://rock.geosociety.org/pub/reposit/2001/2001075.pdf], although completely submerged without any emergent cays or islets, it is one of the largest atolls of the world. 

The broken coral reef rim of Macclesfield Bank, with a width of up to 8 km, has depths of 11.8 m at Pygmy Shoal on the northeast end of the bank and depths of 11.6 to 18 m elsewhere. Within the lagoon, Walker Shoal marks the least known depth of 9.2 meters. In general, the central lagoon is very deep, with depths up to 100 meters [ftp://rock.geosociety.org/pub/reposit/2001/2001075.pdf].

Macclesfield Bank is claimed by the Philippines, People's Republic of China and Republic of China (Taiwan). It is located east of the Paracel Islands, distantly southwest of the Pratas Islands and north of the Spratly Islands.

There are no military stations there. It is a rich fishing ground and difficult to navigate due to the shallow submerged reefs.

The elongated atoll consists of:
{| class="wikitable"
! English</br>Name ||Romanized</br>Name||Chinese</br>Name ||Coordinates
|-
|Siamese Shoal || Simen Ansha || 西門暗沙 || 
|-
|Bankok Shoal||Bengu Ansha ||本固暗沙||
|-
|Magpie Shoal||Meibin Ansha ||美濱暗沙||
|-
|Carpenter Shoal||Luban Ansha ||魯班暗沙||
|-
|Oliver Shoal||Lifu Ansha ||立夫暗沙||
|-
|Pigmy (Pygmy) Shoal||Biwei Ansha ||比微暗沙||
|-
|Engeria (Egeria) Bank||Yinji Ansha ||隱磯灘||
|-
|Howard Shoal||Wuyong Ansha ||武勇暗沙||
|-
|Learmonth Shoal||Jimeng Ansha ||濟猛暗沙||
|-
|Plover Shoal ||Haijiou Ansha ||海鳩暗沙||
|-
|Addington Patch||Anding Lianjiau ||安定連礁||
|-
|Smith Shoal ||Meisi Ansha ||美溪暗沙||
|-
|Bassett Shoal||Bude Ansha ||布德暗沙||
|-
|Balfour Shoal||Pofu Ansha ||波洑暗沙 or</br>伏洑暗沙||
|-
|Parry Shoal ||Paipo Ansha ||排波暗沙||
|-
|Cawston Shoal||Guodian Ansha ||果淀暗沙||
|-
|Penguin Bank||Paihong Ansha ||排洪灘||
|-
|Tanered Shoal||Taojing Ansha ||濤靜暗沙||
|-
|Combe Shoal||Kongpai Ansha ||控湃暗沙||
|-
|Cathy (Cathay) Shoal||Huasia Ansha  ||華夏暗沙||
|-
|Hardy Patches||Shihtanglian Lianjiau ||石塘連礁||
|-
|Hand Shoal||Jhihjhang Ansha ||指掌暗沙||
|-
|Margesson Shoal||Nanfei Ansha ||南扉暗沙||
|-
|Walker Shoal||Manbu Ansha ||漫步暗沙||
|-
|Phillip's Shoal||Lesi Ansha ||樂西暗沙||
|-
|Payne Shoal||Pingnan Ansha ||屏南暗沙||
|}
left|thumb|Macclesfield Bank
The Chinese term for the Macclesfield Bank has a wider meaning than the geographic feature or atoll; it includes some geographically separate features:

To the east, near the Philippines are
* Scarborough Shoal (Panatag Shoal), (Nanyan Dao, Huangyan Dao), 南巖島, 黃岩島, ), is occupied by the Philippines
* Truro Shoal (Sianfa Ansha, Shianfa Ansha, 特魯暗沙, )