While a small town, Kilmarnock and the immediate surrounding areas of Lancaster County are associated with several notable figures who have influenced state and national history:
* **Mary Ball Washington:** Mother of George Washington, born in the surrounding Lancaster County; her legacy is a major part of the region's historical identity. * **Robert O. Norris Jr.:** A prominent Virginia state senator from the area whose name graces the two-mile-long bridge connecting the lower Northern Neck to the Middle Peninsula. * **Dixon L. Foster:** A well-known Virginia judge and political figure who practiced law in the community.