4-Methylcyclohexene is an organic compound consisting of cyclohexene with a methyl group substituent attached to carbon most distant from the alkene group.

All are colorless volatile liquids classified as a cyclic olefins.

Methylcyclohexenes are formed by the partial hydrogenation of toluene to methylcyclohexane over ruthenium catalyst.

[1] In the presence of a Cinchona alkaloid, bromination of an alkene can leads to optically active dibromides.

[2] For 4-methylcyclohexene, the (S)-configuration leads to two different products: the bromines can add at the axial positions, giving the orientation (1S,3R,4R), or at the equatorial positions, giving the orientation (1S,3S,4S).