10,000 is the natural number following 9,999 and preceding 10,001. 10000 may also refer to: 10,000, the last year in the 10th millennium and 100th century, a century leap year starting on Saturday Myriad Ten Thousand, a group of Greek mercenary units LNER Class W1, a famous experimental steam locomotive in the United Kingdom British Rail Class D16/1, named LMS No. 10000 and 10001 were the first mainline diesel locomotives built in Great Britain 10,000 Dawns, a science fiction series published by Arcbeatle Press See also 10.000 (disambiguation) Orders of magnitude (numbers) Ten thousand years myria-