| Port Conway, Virginia | |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Virginia#USA |
| Pushpin Label: | Port Conway |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location within Virginia and the United States |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Virginia |
| Subdivision Type2: | County |
| Subdivision Name2: | King George |
| Unit Pref: | Imperial |
| Population As Of: | 2000 |
| Population Density Km2: | auto |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation Ft: | 43 |
| Coordinates: | 38.1772°N -77.1861°W |
| Postal Code Type: | ZIP codes |
| Blank Name: | FIPS code |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1499897 |
Port Conway is an unincorporated community on the north side of the Rappahannock River in King George County, in the Northern Neck of Virginia. It is opposite Port Royal, which is on the south side of the river in Caroline County.
James Madison, the fourth President of the United States, was born in Port Conway on March 16, 1751, at Belle Grove plantation. The plantation was the childhood home of his mother, Eleanor Rose "Nelly" Conway, the daughter of its owner, Francis Conway, for whom Port Conway was named.
On April 26, 1865, after assassinating President Abraham Lincoln, John Wilkes Booth and his traveling companion David Herold, with Union cavalry in pursuit, crossed the Rappahannock River at Port Conway. The cavalry caught up with them at Garrett's Farm, south of Port Royal, where Herold surrendered and Booth was killed.
In addition to Belle Grove, the Emmanuel Episcopal Church, Millbank, and Woodlawn Historic and Archeological District are listed on the National Register of Historic Places.