The men's 200 metres T51 event at the 2020 Summer Paralympics in Tokyo, took place on 31 August 2021.

The T51 category is for wheelchair athletes having spinal cord injuries, with mild weakness in shoulders, limited ability in straightening elbows and wrist function, and no finger, trunk or leg function.

Prior to the competition, the existing records were as follows:[1] The final took place on 31 August 2021, at 10:18:[2]