2-Methoxypropene is an ether with the chemical formula C<sub>4</sub>H<sub>8</sub>O. It is a reagent used in organic synthesis to introduce a protecting group for alcohols, and the conversion diols to the acetonide group.
2-Methoxypropene can be prepared by the elimination of methanol from dimethoxypropane, or by the addition of methanol to propyne or allene.