The men's 1500 metres T20 event at the 2020 Summer Paralympics in Tokyo took place on 3 September 2021.

The T20 category is for athletes with intellectual impairment.

T20 athletes have an IQ score of 75 or less.

Prior to the competition, the existing records were as follows:[1] The final took place on 3 September 2021, at 10:13:[2]

This Paralympics-related article is a stub.