00s or 00s may refer to:

Periods of 10 years

Periods of 100 years

Other uses Hundreds (the third column of magnitude in the decimal system) The decade spanning years 2000–2009 The period from AD 1 to 99, almost synonymous with the 1st century (AD 1–100) The period from AD 1 to 9, also referred to as the 1st decade or the 0s 00S, McKenzie Bridge State Airport in Oregon Any century or the term century in general

See also OOS (disambiguation) 00 (disambiguation) OO (disambiguation)