The following highways are numbered 497:
| Preceded by 496 | Lists of highways 497 | Succeeded by 498 |
State Highway 186 is a state highway located in the Rio Grande Valley of the U.S. state of Texas. The route connects US 281 to the Gulf of Mexico at Port Mansfield.
Maryland Route 497 is a state highway in the U.S. state of Maryland. Known as Cove Point Road, the state highway runs 2.68 miles (4.31 km) from MD 2/MD 4 in Lusby east to the community of Cove Point. MD 497 was constructed in the early 1930s.
National Route 497 is a national highway of Japan connecting between Hakata-ku, Fukuoka and Takeo, Saga in Japan, with total length has 63.5 km (39.5 mi).
King's Highway 109, or Highway 109, is a former provincial highway in Ontario. It was used on two separate, unrelated routes during the 1950s and 1960s:
