M105

M105 or M-105 may refer to:

• Messier 105, an elliptical galaxy in the constellation Leo
• M105, a 1½ ton US Army trailer
• M-105 (Michigan highway), a former state highway in Michigan
• Klimov M-105 aircraft engine
• CFXM-FM, a radio station in Granby, Quebec, branded M105
• WWWM, a radio station in Cleveland, Ohio now known as WMJI

In athletics:

• Masters athletics, an age group for athletes aged 35+