Vinylsilane refers to an organosilicon compound with chemical formula CH₂=CHSiH₃.
More commonly used than the parent vinylsilane are vinyl-substituted silanes with other substituents on silicon. In the area of organic synthesis, vinylsilanes are useful intermediates.
In the area of polymer chemistry and materials science, vinyltrimethoxysilane or vinyltriethoxysilane H2C≈cH serve as monomers and coupling agents.