1999 may refer to:

• the year 1999
• one of several musical recordings by Prince:
  • 1999 (album) (released 1982)
  • "1999" (song), the title song of the above album
  • 1999: The New Master, a 1999 EP containing remixes of the above song
• NGC 1999, a dust filled bright nebula
• Space: 1999, a 1975-1977 British television series
• 1999 (Cassius album) (released 1999)
• 1999: Hore, Mitakotoka! Seikimatsu, a Famicom game released only in Japan

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