C8H8

The molecular formula C8H8 may refer to:


 * Barrelene
 * Benzocyclobutene (BCB)
 * Cubane
 * Cuneane
 * Cyclooctatetraene
 * Semibullvalene
 * Polystyrene
 * Styrene
 * Xylylene
 * Heptafulvene