The Men's 100 metres T11 event at the 2016 Paralympic Games took place between 10 and 11 September 2016, at the Estádio Olímpico João Havelange.

The T11 category is for athletes with a visual impairment.

A T11 athlete may be entirely without sight, or be able to perceive light, but have no ability to see the shape of a hand at any distance.

T11 athletes commonly run with guides.

These were the World and Paralympic Games records at the beginning of the event.