The men's 100 metres T38 event at the 2020 Summer Paralympics in Tokyo took place on 28 August 2021. The T38 category is for ambulant athletes with cerebral palsy. T38 athletes have the mildest form of impairment caused by cerebral palsy, often in only one limb, and not affecting the ability to run, walk or jump freely, although impairing performance. T38 athletes may suffer minor co-ordination difficulties.