• B1 road (Croatia), the designation of an expressway route in Croatia
• B1 road (Cyprus), a road in Cyprus
• B1 highway (Germany), a German road
• B1 road (Kenya), a road connected to the A1 road
• B1 road (Namibia)
  B1 road (Namibia)
  The B1 is one of the most important roads in Namibia, passing through the centre of the country in a north-south direction. It connects Noordoewer on the South African border with Oshikango in the north on the Angolan border...
  
  , an important North-South road
• B1 road (Sri Lanka), a road connecting Akkaraipattu and Warapathanchenai
• B1 road (United Kingdom) may refer to :
  • B1 road (Northern Ireland)
    B1 road (Northern Ireland)
    The B1 road or Ardglass/Downpatrick road is a B road in Northern Ireland connecting the B176 road at Downpatrick and the A2 road at Ardglass....
    
    , a road connecting Downpatrick and Ardglass
• B1 road (United States of America) may refer to :
  • B-1 corridor (Appalachian Development Highway System)

See also

• List of highways numbered 1, a disambiguation page
• List of A1 roads, a disambiguation page