2000 may refer to:

• 2000, the year
• Year 2000 problem
• 2000 (number)
• 2000 AD (comic), a British science-fiction comic book
• 2000 B.C. (album), a 2000 album by rapper Canibus
• 2000 (breakdance move)
• 2000 CR₁₀₅, the third most distant known object in the solar system
• 2000 Plus, a 1950s American radio series
• Cusco 2000, an album by the German cross-cultural new age band Cusco
• Windows 2000, operating system
• X 2000, high-speed trains in Sweden
• a postal code in Antwerp, Belgium
• 2OOO a radio station in Sydney Australia known as 2000 FM
• 2000 the postcode of Sydney Central Business District, Australia

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