2022 World Para Swimming Championships – Men's 100 metre butterfly

The men's 100m butterfly events at the 2022 World Para Swimming Championships were held at the Penteada Olympic Swimming Complex in Madeira between 12–18 June.

S13
11 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 12 June 2022.
 * Final