The Men's 800 metres T54 at the 2024 Summer Paralympics took place on the morning and evening of 5 September at the Stade de France in Paris.

Typically this may be caused by a lower spinal cord injury or spinal cord birth defect.

[1] The heats of the Men's 800 metres T54 took place on the morning of 5 September 2024.

First 3 in each heat (Q) and the next 2 fastest (q) advance to the Final.

The final in this classification took place on the Evening of 5 September 2024.