James Nyang Chiengjiek (born March 2, 1992) is a runner originally from South Sudan, but now living and training in Kenya.

[4] He was also qualified to the 2020 Tokyo Olympics ROT, and placed last in his 800 m heat after tripping due to a fellow competitor's involuntary touch.

[3] At the age of 13 Chiengjiek left South Sudan and escaped to Kenya as a refugee to avoid being recruited by rebels as a child soldier.

[3] He began running whilst attending school in Kenya; joining a group of older children from a town in the highlands known for its long-distance runners who were training for events.

[5] In 2013 he was selected to join a group of athletes in the Tegla Loroupe Peace Foundation, a support program for refugees from the Kakuma camp run by former marathon world record holder Tegla Loroupe.