Sri Lanka participated at the 2018 Summer Youth Olympics in Buenos Aires, Argentina from 6 October to 18 October 2018. Sri Lanka made its Youth Olympics (and Olympics) debut in three sports it qualified in: archery, basketball and gymnastics. Sri Lanka also made its Youth Olympics debut in the sport of shooting. Parami Wasanthi Maristela won Sri Lanka's first ever Youth Olympics medal, a bronze in the girls' 2000 metre steeplechase athletics event.