At the 2000 Summer Olympics in Sydney, 46 events in athletics were contested, 24 for men and 22 for women. There were a total number of 2,134 participating athletes from 193 countries.
A total of 193 nations participated in the different athletics events at the 2000 Summer Olympics. Two athletes from East Timor participated as individual Olympic athletes. A total of 2135 athletes competed at the competition.
<nowiki>*</nowiki> Athletes who participated in the heats only and received medals.
<nowiki>*</nowiki> Athletes who participated in the heats only and received medals.