The following highways are numbered 234:
Australia
Canada
Costa Rica
India
Ireland
Italy
Japan
Nigeria
United States
California State Route 234 (unbuilt)
Florida State Road 234 (former)
Georgia State Route 234
Indiana State Road 234
K-234 (Kansas highway)
Kentucky Route 234
Maine State Route 234
Maryland Route 234
Montana Secondary Highway 234
New Mexico State Road 234
New York State Route 234 (former)
Oregon Route 234
Pennsylvania Route 234
Tennessee State Route 234
Texas State Highway 234
Utah State Route 234 (former)
Virginia State Route 234
Wyoming Highway 234
Preceded by 233 | Lists of highways 234 | Succeeded by 235 |