β‐halovinyl aldehydes serve as a valuable building blocks in organic synthesis. These aldo‐x bifunctional building blocks (AXB3s) contain a alkenic double bond (vinyl) as well as a formyl group along with a halogen atom (Cl, Br, I) bonded with the β‐carbon atom of vinyl aldehyde. Owing to the presence of these multiple reactive sites, β‐halovinyl aldehydes act as a suitable precursor for Michael addition, direct addition, cross‐coupling reactions, condensation reactions, nucleophilic substitution reactions, domino reactions, MCRs, Diels‐Alder reaction, functional group transformation reactions and enantioslective transformations. Therefore, a comprehensive review on synthetic exploration of β‐halovinyl aldehydes has been carried out for the generation of reactive intermediates and diverse bioactives heterocycles by using various C‐C, C‐N, C‐S and C‐O bond forming reactions. In this review, we have assembled the literature from mid‐2007 to Jan 2024.