0 may refer to:

• 0 (number), the integer between −1 and +1
• 0 (year), a year used in some calendar systems
• Slashed zero, a glyph used to distinguish the numeral 0 from the letter O
• 0 or #0, pseudonym of American musician Sid Wilson, when performing with the band Slipknot

See also

• Zero (disambiguation)
• O, a letter of the Latin alphabet
• , a letter of several Scandinavian alphabets
• , the empty set
• 0#, the zero sharp set
• , the Greek letter phi
• , the Greek letter theta
• , the diameter symbol

an:0 bs:0 ( vor) ca:0 de:0 et:0 es:0 (desambiguaci n) eu:0 (argipena) fa: id:0 ht:0 (menm non) ku:0 ja:0 ( ) or: ( ) pt:0 sr:0 fi:0 ur:0 vi:0 war:0 zh:0 ( )