M40

• 4 (Aitch album)
• 40M (disambiguation)
• Autopista de Circunvalación M-40
• BMW M40
• Charomskiy M-40
• Chiltern Railways
• M-40 (Michigan highway)
• M/40 automatic cannon
• M40 (Cape Town)
• M40 (Johannesburg)
• M40 (Pietermaritzburg)
• M40 field protective mask
• M40 gun motor carriage
• M40 motorway
• M40 recoilless rifle
• M40 rifle
• Macchi M.40
• Masters athletics
• Mersenne prime
• Messier 40
• SSh-40
• Samsung Galaxy M40
• Stahlhelm
• Volvo M40 transmission