2023 World Para Swimming Championships – Men's 50 metre butterfly

The men's 50m butterfly events at the 2023 World Para Swimming Championships were held at the Manchester Aquatics Centre between 31 July and 6 August.

S5
Nine swimmers from six nations took part. The swimmers with the top eight times, regardless of heat, advanced to the final.
 * Heats

The final was held on 2 August.
 * Final

S6
Thirteen swimmers from eight nations took part. The swimmers with the top eight times, regardless of heat, advanced to the final.
 * Heats

The final was held on 6 August.
 * Final

S7
Eight swimmers from eight nations took part. The swimmers with the top eight times, regardless of heat, advanced to the final.
 * Heats

The final was held on 4 August.
 * Final