Between 1802 and 1896, the area currently known as Ashburn was called Farmwell (sometimes called Farmwell Station). The shift to the name Ashburn began slowly around 1870 when a farm owned by John Janney was named Ashburn Farm. This name was chosen because of an Ash tree on the property that caught fire after being struck by lightning. 

However, by 1896, concerns arose about the intermittent confusion between Farmwell, VA, and Farmville, VA, leading to the need for a change in name. It is rumored that the suggested new name, Ashburn, came from William Morris Stewart, a former Senator from Nevada who purchased Ashburn Farm after Janney.