List of highways numbered 345

The following highways are numbered 345:

Australia
- Victoria

Canada

 * Manitoba secondary 345.svg Manitoba Provincial Road 345
 * NB 345.svg New Brunswick Route 345
 * NL Route 345.svg Newfoundland and Labrador Route 345
 * PEI Highway 345.svg Prince Edward Island Route 345
 * Qc345.svg Quebec Route 345

Japan

 * Japanese National Route Sign 0345.svg Japan National Route 345

Nigeria

 * NGA road A345.svg A345 highway (Nigeria)

United States

 * I-345.svg Interstate 345 (unsigned)
 * Arkansas 345.svg Arkansas Highway 345
 * Florida:
 * Florida 345.svg Florida State Road 345
 * Levy County 345.svg County Road 345 (Levy County, Florida)
 * NY-345.svg New York State Route 345
 * NC 345.svg North Carolina Highway 345
 * OH-345.svg Ohio State Route 345
 * PA-345.svg Pennsylvania Route 345
 * Ellipse sign 345.svg Puerto Rico Highway 345
 * Texas:
 * Texas 345.svg Texas State Highway 345
 * Texas Loop 345.svg Texas State Highway Loop 345
 * Virginia 345.svg Virginia State Route 345
 * Virginia State Route 345 (former)
 * WY-345.svg Wyoming Highway 345