The molecular formula C8H14 (molar mass: 110.20 g/mol) may refer to:
- Allylcyclopentane
- Biisobutenyl
- Bimethallyl
- Cyclooctenes
- Methylcycloheptene
- Methylenecycloheptane
- 1,7-Octadiene
- Octynes
- Bicyclooctane
- Bicyclo[2.2.2]octane
- Bicyclo[3.3.0]octane (polyquinane)
- Bicyclo[3.2.1]octane[1]