Machodoc is an unincorporated community in Westmoreland County, in the U. S. state of Virginia.
A post office called Machodoc was established in 1872, and remained in operation until it was discontinued in 1955. Machodoc is a name derived from a Native American language meaning "ceremonial river".
Coordinates: 38°04′49″N 76°41′48″W / 38.08028°N 76.69667°W