Minnieville is an extinct unincorporated community that was once located in Prince William County, Virginia. The Minnieville post office stood at the corner of what is now known as Minnieville Road and Cardinal Drive from 1884 to 1924. The town was surrounded by large dairy farms, but subsequent suburban encroachment from the communities of Dale City and Montclair have since subsumed these farms into subdivision developments.
Unofficial flag of Minnieville, Virginia, based on the flag of the 3rd Brigade, Confederate Army of the Shenandoah, which was quartered in Minnieville in 1861.
Though there are many residents of the subdivisions now located on land that once was recognized as being part of the town of Minnieville, the name itself is no longer used to identify this area, hence the designation of "extinct". A roadside marker is the only remnant.