1000s

1000s may refer to:
 * The millennium from 1 January 1000, to 31 December 1999, almost synonymous with the 2nd millennium (1001–2000)
 * The century from 1 January 1000, to 31 December 1099, almost synonymous with the 11th century (1001–1100)
 * 1000s (decade), the decade from 1 January 1000, to 31 December 1009, almost synonymous with the 101st decade (1001–1010)