Puerto Rico competed at the 2011 World Championships in Athletics from August 27 to September 4 in Daegu, South Korea.

A team of 8 athletes was announced to represent the country in the event.

The team is led by last event's silver medalist, 400m hurdler Javier Culson.

[1][2] The following athlete appeared on the preliminary Entry List,[2] but not on the Official Start List of the specific event:[3] The following competitor from Puerto Rico won a medal at the Championships