The women's triple jump at the 2021 World Athletics U20 Championships was held at the Kasarani Stadium on 19 and 20 August.

[1] The qualification took place on 19 August, in two groups, starting at 17:00.

Athletes attaining a mark of at least 13.20 metres ( Q ) or at least the 12 best performers ( q ) qualified for the final.

[2][3] The final was held on 20 August at 14:27.

[4]