This is a list of roads designated "M1". Road entries are sorted in alphabetical order by country.

• Bruce Highway
• Gateway Motorway
• Pacific Motorway (Brisbane–Brunswick Heads)
• Pacific Motorway (Grafton Bypass)
• Pacific Motorway (Port Macquarie–Coffs Harbour)
• Pacific Motorway (Sydney–Newcastle)
• Gore Hill Freeway
• Warringah Freeway
• Sydney Harbour Tunnel
• Cahill Expressway
• Eastern Distributor
• Southern Cross Drive
• General Holmes Drive
• Princes Motorway

• Princes Freeway (East)
• Monash Freeway
• CityLink
• West Gate Freeway
• Princes Freeway (west)

• South Eastern Freeway

• M1 highway (Belarus), a road connecting the border with Poland and the border with Russia
• M1 motorway, a road in England connecting London and Leeds
• M1 motorway (Hungary), a road connecting Budapest and Győr and Hegyeshalom, border to Austria
• M1 motorway (Northern Ireland), a road connecting Belfast and Dungannon
• M1 motorway (Republic of Ireland), a road connecting Dublin to the border with Northern Ireland
• M1 highway (Russia), a road connecting Moscow and the border with Belarus
• Highway M01 (Ukraine), a road connecting Kyiv and the border with Belarus

• M1 (Johannesburg), a metropolitan route in Johannesburg, South Africa
• M1 (Pretoria), a metropolitan route in Pretoria, South Africa
• M1 (Durban), a metropolitan route in Durban, South Africa

• M1 road (Zambia), a road in Zambia
• M1 road (Malawi), a road in Malawi

• M-1 motorway (Pakistan), a road connecting Peshawar and Rawalpindi
• M1 motorway (Syria): a road in Syria connecting Latakia and Homs
• M-1 (Michigan highway), a road in the United States

• List of highways numbered 1