Belgium has competed in all World Athletics Championships since 1983.

Athletes representing Belgium have won 11 medals of which 2 gold.

Belgium's only gold medalist is heptathlete Nafissatou Thiam who won in London 2017 and Eugene 2022.

[1] Belgium was most successful at the 2022 World Championships, where the Belgium athletes won the most medals (3) and where the country had the highest medal ranking (=16th).

[2]