Nigeria participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018.

Nigeria was given a quota to compete by the tripartite committee.

[1] Nigeria qualified two boats based on its performance at the 2018 World Qualification Event.

[2] Nigeria received a quota of two athletes to compete by the tripartite committee.

[4] Based on its performance at the 2018 African Cadet Championships Nigeria has two female wrestlers in a qualifying position.