Athletics at the 2016 Summer Paralympics – Men's 400 metres T51

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.

The Athletics at the 2016 Summer Paralympics – Men's 400 metres T51 event at the 2016 Paralympic Games took place on 17 September 2016, at the Estádio Olímpico João Havelange.