The following highways are numbered S1

China

• S1 Expressway (Guangdong)
• S1 Expressway (Henan)
• S1 Expressway (Hubei)
• S1 Expressway (Shandong)
• S1 Expressway (Shanghai)
• S1 Expressway (Sichuan)
• S1 Expressway (Tianjin)
• S1 Expressway (Tibet)
• S1 Expressway (Zhejiang)

Georgia

• S1 Highway

Poland

• Expressway S1 (Poland)

United States

• New Jersey Route S1 (former)

See also

• List of highways numbered 1