Dumore was an American automobile manufacturer that operated in Lafayette, Indiana, during the early 20th century. Founded in 1918 as the American Motor Vehicle Company, the brand focused on producing cyclecars, a type of small, lightweight vehicle that was popular in the 1910s and 1920s.

The company manufactured a two-seater cyclecar known as the Built, which featured an 1100cc four-cylinder engine sourced from the American Junior model. Production of the Built lasted from 1916 until 1920, but the company itself was short-lived and ceased operations shortly thereafter. Despite its brief existence, Dumore contributed to the diverse landscape of early American automotive innovation.