3 (disambiguation)

3 and three may mean:

 3 (number), a number, numeral, and glyph
 3, the year 3 AD
 3 BC, the year 3 BC

In music and film:
 #3, the pseudonym of American musician Chris Fehn, when performing with Slipknot

3 can also mean:
 3 Juno, a large asteroid

3 looks similar to:
 Yogh (Ȝ), a letter used in Middle English and Middle Scots
 Ezh (Ʒ), a letter used in the International Phonetic Alphabet and some African languages
 Ze (З), a letter used in the Cyrillic script.