The men's marathon at the 2015 IPC Athletics World Championships was held in the streets of London on 26 April as part of the 2015 London Marathon.

Athletes were given a classification depending on the type and extent of their disability. The classification system allowed athletes to compete against others with a similar level of function.

The athletics classifications are:

• 11–13: Blind (11) and visually impaired (12, 13) athletes
• 31–38: Athletes with cerebral palsy
• 51–58: Athletes with a spinal cord disability

The class numbers were given prefixes of "T", "F" and "P" for track, field and pentathlon events, respectively.

Visually impaired athletes classified 11 run with full eye shades and a guide runner; those classified 12 have the option of using a guide; those classified 13 did not use a guide runner.

• List of IPC world records in athletics