The following highways are numbered 830:
| Preceded by 829 | Lists of highways 830 | Succeeded by 831 |
U.S. Route 830 (US 830) was a U.S. Highway in Washington, which ran between a junction with US 97 near the city of Maryhill and a junction with US 101 near Ilwaco. The route still (mostly) exists; however it is currently signed as State Route 14 (SR 14) between Maryhill and Vancouver, Interstate 5 (I-5) between Vancouver and Longview, SR 432 for a short stretch through Longview; and SR 4 from Longview to the western terminus near Ilwaco. The number suggests that US 830 was an auxiliary route of US 30. While US 30 and US 830 never connected, they ran parallel to each other for the entire length of US 830. This route ran on the northern bank of the Columbia River whereas US 30 runs on the river's southern bank, through Oregon.
Zoji La is a high mountain pass in the Himalayas. It is in the Kargil district, Indian Union territory of Ladakh. Located in the Dras subdivision, the pass connects the Kashmir Valley to its west with the Dras and Suru valleys to its northeast and the Indus valley further east. National Highway #1 between Srinagar and Leh in the western section of the Himalayan mountain range, traverses the pass. As of late 2022, an all-weather Zoji-la Tunnel is under construction to mitigate seasonal road blockages due to heavy snowfall.
Louisiana Highway 830 is a collection of six state highways which serve Bastrop in Morehouse Parish.
