80

80 may refer to:

• 80 (number), the natural number following 79 and preceding 81
• one of the years 80 BC, AD 80, 1980, 2080, 2180
• ', an album released in 2005
• 80 (Tolis Voskopoulos album), released in 1980
• "80", a song by Green Day from their 1991 album Kerplunk!
• 80 Sappho, a main-belt asteroid
• The Eighty (Vichy France), a group of French parliamentarians who opposed the dissolution of the Third Republic