List of highways numbered 284

Japan

• Japan National Route 284

  United States

• Interstate 284
• Arkansas Highway 284
• California State Route 284
• Florida State Road 284
• Georgia State Route 284
• K-284
• Kentucky Route 284
• Maryland Route 284
• Minnesota State Highway 284
• Montana Secondary Highway 284
• New Jersey Route 284
• New York State Route 284
• Ohio State Route 284
• Pennsylvania Route 284
• South Carolina Route 284
• Tennessee State Route 284
• Texas State Highway 284
• * Texas State Highway Loop 284
• * Farm to Market Road 284
• Utah State Route 284