- Source: XO-2 (disambiguation)
XO-2 is a star.
XO-2 may also refer to:
XO-2Nb, an extrasolar planet orbiting XO-2.
OLPC XO-2, a design study of the One Laptop per Child computer
Douglas XO-2, a variant of the Douglas O-2 U.S. Army Air Corps interwar observation plane
See also
X02 (September 2002), a Microsoft Xbox expo
\x02 control code
X2 (disambiguation)