Contents

• Belgium
• Canada
• Ireland
• Italy
• Netherlands
• Philippines
• Sweden
• United Kingdom
• United States

The following highways are numbered 666:

This list is incomplete; you can help by adding missing items. (January 2025)

Belgium

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

Canada

• Alberta Highway 666
• Ontario Highway 666 (former)

Ireland

• R666

Italy

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

Netherlands

• Provinciale weg 666 NL Wiki Page

Philippines

• N666 highway (Philippines)

Sweden

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

United Kingdom

• A666 road

United States

• 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

This article includes a list of roads, streets, highways, or other routes that are associated with the same title.
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