List of highways numbered 666

The following highways are numbered 666:

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

• Alberta Highway 666
• Ontario Highway 666 (former)

• R666

• Strada regionale 666 di Sora (formerly strada statale 666 di Sora)

• Provinciale weg 666 NL Wiki Page

• N666 highway (Philippines)

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

• A666 road

• U.S. Route 666 (former, renumbered in 2003 to US 191 and US 491)
• Florida State Road 666
• Maryland Route 666 (former)
• Ohio State Route 666
• Pennsylvania Route 666
• Puerto Rico Highway 666
• Farm to Market Road 666