2 (disambiguation)

2 and two may mean:
 2 (number), a number, numeral, and glyph
 2, the year 2 AD
 2 BC, the year 2 BC

In music
 #2, the pseudonym of American musician Paul Gray when he performed with Slipknot

In sports:
 catcher, position number 2  on a baseball team

In television:
  Leoben Conoy, the Cylon model also known as Number 2 on Battlestar Galactica

2 may also mean:
 2 Pallas, a large asteroid
 defecation, sometimes referred to as Number 2, as opposed to Number 1 (urination)
  The word too in internet slang