3-Cyclohexene-1-carboxaldehyde, also known as 3-cyclohexene-1-carbaldehyde, is an organic compound with the molecular formula C₇H₁₀O. Its chemical structure consists of a cyclohexene ring with a carboxaldehyde functional group (CHO) attached to one of its carbon atoms. This compound is a member of the aldehyde family and possesses a distinct and pleasant odor.

One of the primary uses of 3-cyclohexene-1-carboxaldehyde is in the fragrance and perfume industry. It is valued for its sweet, floral aroma and is used as a fragrance ingredient in perfumes, colognes, and other scented products. Aldehydes like 3-cyclohexene-1-carboxaldehyde can participate in various chemical reactions, including condensation reactions, which are important in organic synthesis.