# Virginia State Route 721

State Route 721 (SR 721) in the U.S. state of Virginia is a secondary route designation applied to multiple discontinuous road segments among the many counties. The list below describes the sections in each county that are designated SR 721.

## List

| County | Length (mi) | Length (km) | From | Via | To | Notes |
| Accomack | 0.10 | 0.16 | SR 632 (Evergreen Road) | Unnamed road | Dead End | |
| Albemarle | 1.21 | 1.95 | SR 6 (Irish Road) | Old Dominion Road | SR 630 (Green Creek Road) | |
| Alleghany | 1.11 | 1.79 | SR 687 (Jackson River Road) | Unnamed road | SR 687 (Jackson River Road) | Gap between SR 695 and a dead end |
| Amherst | 0.35 | 0.56 | Dead End | Ann Street | US 29 Bus | |
| Augusta | 2.10 | 3.38 | Dead End | Eagle Rock Lane Hundley Mill Road | Dead End | Gap between segments ending at different points along US 250 |
| Bedford | 0.80 | 1.29 | SR 122 (Moneta Road) | Wells Road | SR 722 (Five Forks Road) | |
| Botetourt | 0.50 | 0.80 | US 11 (Lee Highway) | Darby Road | US 11 (Lee Highway) | |
| Campbell | 0.40 | 0.64 | SR 646 (Spring Mill Road) | Pilot View Road | Dead End | |
| Carroll | 4.03 | 6.49 | SR 606 (Dixon Road) | Fries Road Cliffview Road | Galax city limits | Gap between segments ending at different points along SR 607 |
| Chesterfield | 0.30 | 0.48 | Dead End | Penmar Drive | SR 36 (River Road) | |
| Dinwiddie | 0.60 | 0.97 | US 460/FR-804 | Pine Hill Road | Dead End | |
| Fairfax | 0.83 | 1.34 | SR 242 (Gunston Road) | Pohick Bay Drive | Cul-de-Sac | |
| Fauquier | 6.42 | 10.33 | SR 738 (Wilson Road) | Free State Road | I-66/US 17 Bus/SR 55 | |
| Franklin | 3.50 | 5.63 | SR 707 (Ashpone Tavern Road) | Patti Road | SR 718 (Colonial Turnpike) | |
| Frederick | 0.17 | 0.27 | US 522 (Maple Street) | Purcell Lane | Dead End | |
| Halifax | 4.16 | 6.69 | US 360 (James D Hagood Highway) | Piney Creek Road Ashe Cake Creek Road | SR 716 (Dryburg Road) | |
| Hanover | 1.21 | 1.95 | SR 620 (Dogwood Trail Road) | Watkins Road | Dead End | |
| Henry | 0.58 | 0.93 | Dead End | DuPont Road | US 58 | |
| James City | 0.28 | 0.45 | SR 614 (Centerville Road) | Settlers Lane | Cul-de-Sac | |
| Loudoun | 0.15 | 0.24 | SR 726 (Taylor Road) | Crooked Run Lane | Dead End | |
| Louisa | 0.30 | 0.48 | Dead End | Watkins Lane | SR 688 (Holland Creek Road) | |
| Mecklenburg | 1.50 | 2.41 | Dead End | State Line Road | SR 822 (Old Saudan Road) | |
| Montgomery | 0.42 | 0.68 | Dead End | Mash Run | SR 655 (Long Shop Road/Mount Zion Road) | |
| Pittsylvania | 0.85 | 1.37 | US 29 Bus | Livestock Road | SR 719 (Lawless Creek Road) | |
| Prince George | 0.42 | 0.68 | SR 630 (Jefferson Park Road) | Mica Drive | Dead End | |
| Prince William | 0.27 | 0.43 | US 1 (Jefferson Davis Highway) | Anderson Road | SR 722 (Meyers Road) | |
| Pulaski | 0.60 | 0.97 | SR 693 (Julia Simpson Road) | Webb Road | Dead End | |
| Roanoke | 0.70 | 1.13 | SR 666 (Bandy Road) | Ferguson Valley Road | Dead End | |
| Rockbridge | 0.90 | 1.45 | SR 717 | Finley Road | SR 606 (Raphine Road) | |
| Rockingham | 9.49 | 15.27 | SR 613 (Turleytown Road/Singers Glen Road) | Green Hill Road Linville Edom Road Longs Pump Road Fellowship Road | SR 717 (Indian Trail Road) | Gap between segments ending at different points along SR 42 Gap between segments ending at different points along SR 753 Gap between segments ending at different points along US 11 |
| Scott | 1.40 | 2.25 | SR 694 | Indian Creek Lane | Dead End | |
| Shenandoah | 4.10 | 6.60 | SR 263 (Orkney Grade) | Kelly Road | SR 711 (Bauserman Road) | |
| Spotsylvania | 4.01 | 6.45 | SR 601 (Lawyers Road) | Grand Brooks Road | SR 612 (Stubbs Bridge Road) | |
| Stafford | 1.12 | 1.80 | SR 687 (Hope Road) | Old Concord Road | Dead End | |
| Tazewell | 0.90 | 1.45 | Dead End | Teri Road | SR 643 (Mud Fork Road) | |
| Washington | 2.72 | 4.38 | SR 91 | Limestone Road | Dead End | Gap between segments ending at different points along SR 722 |
| Wise | 0.75 | 1.21 | US 23 Bus | Highland Drive | Dead End | |
| York | 0.07 | 0.11 | SR 720 (Wilkins Drive) | Berkley Drive | SR 722 (Duncan Drive) | |