List of highways numbered 666

Belgium

• The pilgrimage centre of Banneux in Belgium is located on the N666 road.

  Canada

• Alberta Highway 666
• Ontario Highway 666

  Ireland

• R666

  Italy

• Strada regionale 666 di Sora

  Netherlands

• Provinciale weg 666 NL Wiki Page

  Philippines

• N666 highway

  Sweden

• Länsväg 666, in Uppland, eastbound from Alunda. Z 666 Wiki SV

  United Kingdom

• A666 road

  United States

• U.S. Route 666
• Florida State Road 666
• Maryland Route 666
• Ohio State Route 666
• Pennsylvania Route 666
• Puerto Rico Highway 666
• Farm to Market Road 666