State Route 203 (SR 203) is a primary state highway in the U.S. state of Virginia. Known for most of its length as Oldhams Road, the state highway runs 9.76 miles (15.71 km) from SR 3 at Lyells north to SR 608 and SR 1007 in Kinsale. Though it runs in generally in an east–west direction, the route is signed north–south.