The men's 50 metre backstroke event at the 2001 World Aquatics Championships took place 25 July. The heats and semifinals took place 24 July, with the final being held on 25 July.

Records

Prior to the competition, the existing world and championship records were as follows. The following record was established during the competition:

Results

Heats

Swim-off

Semifinals

Final

References

{{DEFAULTSORT:Swimming at the 2001 World Aquatics Championships - Men's 50 Metre Backstroke Swimming at the 2001 World Aquatics Championships