List of highways numbered 323
The following highways are numbered 323:
Canada
- Quebec Route 323
China
- China National Highway 323
Costa Rica
- National Route 323
Japan
- Japan National Route 323
United States
- County Road 323
- Georgia State Route 323
- Kentucky Route 323
- Louisiana Highway 323
- Minnesota State Highway 323
- Montana Secondary Highway 323
- New York State Route 323
- Ohio State Route 323
- Puerto Rico Highway 323
- Tennessee State Route 323
- Texas:
- * Texas State Highway 323
- * Texas State Highway Loop 323
- * Farm to Market Road 323
- Virginia State Route 323