List of highways numbered 420

Route 420 or Highway 420 may refer to:

Australia

• Template:AUshield Bass Highway (Victoria)
• Template:AUshield South Gippsland Freeway
• Template:AUshield South Gippsland Highway
• Template:AUshield Bass Highway
• Template:AUshield Phillip Island Road

Canada

• File:Ontario 420.svg Ontario Highway 420
• New Brunswick Route 420
• Newfoundland and Labrador Route 420

Ireland

• R420 road

Japan

• File:Japanese National Route Sign 0420.svg Japan National Route 420

Norway

• File:Riksvei 420.svg Norwegian County Road 420

Spain

• N-420

United Kingdom

• File:UK road A420.svg A420 road (Bristol to Oxford)

United States

• File:I-420.svg Interstate 420 (multiple highways) (former)
• File:US 420.svg U.S. Route 420
• File:Florida 420.svg Florida State Road 420 (former)
• File:Orange County Road 420 FL.svg County Road 420 (Orange County, Florida)
• File:Louisiana 420.svg Louisiana Highway 420
• File:Indiana 420.svg Indiana State Road 420 (now Interstate 94).
• File:New Mexico 420.svg New Mexico State Road 420
• File:NY-420.svg New York State Route 420
• File:OH-420.svg Ohio State Route 420
• File:PA-420.svg Pennsylvania Route 420
• File:Ellipse sign 420.svg Puerto Rico Highway 420
• File:South Carolina 420.svg South Carolina Highway 420
• File:Secondary Tennessee 420.svg Tennessee State Route 420
• File:Texas FM 420.svg Farm to Market Road 420
• File:Virginia 420.svg Virginia State Route 420
• File:Elongated circle 420.svg Kentucky State Route 420

Preceded by 419

Lists of highways 420

Succeeded by 421