List of public transport routes numbered 1

• Route 1, a bus route in Baltimore, Maryland
• Barcelona Metro line 1
• Line 1
• Line 1
• Citybus Route 1 in Hong Kong
• KMB Route 1 in Hong Kong
• London Buses route 1
• Manila LRT Yellow Line
• Line 1 Green
• 1
• Seoul Subway Line 1
• Shanghai Metro Line 1
• Line 1
• Melbourne tram route 1
• Line 1 Yonge-University, in Toronto
• Transjakarta corridor 1 Blok M-Kota