The following highways are numbered 322:

Canada

• Nova Scotia Route 322
• Saskatchewan Highway 322

China

• China National Highway 322

Costa Rica

• National Route 322

India

• National Highway 322 (India)

Japan

• Japan National Route 322

United States

• U.S. Route 322
• Arkansas Highway 322
• Connecticut Route 322
• County Road 322 (Levy County, Florida)
• Georgia State Route 322 (former)
• Iowa Highway 322 (former)
• Kentucky Route 322
• Louisiana Highway 322
• Maryland Route 322
• Minnesota State Highway 322 (former)
• Mississippi Highway 322
• Montana Secondary Highway 322
• Nevada State Route 322
• New Mexico State Road 322
• New York:
  • New York State Route 322
  • County Route 322 (Erie County, New York)
• South Carolina Highway 322
• Tennessee State Route 322
• Texas:
  • Texas State Highway 322
  • Texas State Highway Loop 322
  • Farm to Market Road 322
• Virginia State Route 322
  • Virginia State Route 322 (former)
• Wyoming Highway 322 (former)

Other areas:

• Puerto Rico Highway 322
• U.S. Virgin Islands Highway 322