indoor Şilan Ayyıldız (born 10 October 1999) is a Turkish female middle and long-distance track runner, who specializes in the 800m and 1500m events.

[1] She took part in the 2017 ISF World Schools Athletics Championships in Nancy, France on 20–24 June, where she took the silver medal in the 800m event.

[2][3] She gained her first international experience in 2017, when she was eliminated from the preliminary round of the 1500m event at the 2017 European Athletics U20 Championships in Grosseto, Italy on 20–23 July with a time of 4:35.96.

[7] In April 2021, Ayyıldız won the 10 km maraton at the N Kolay International Marathon in Istanbul with 37:17,[8] and in June 2022, she became Turkish U-23 champion in the 1500m event in Bursa.

[13][14] In June 2022, she improved her "personal best" in the 1500m with a time of 4:10.59 at the Meeting International D'athlétisme de Montreuil in France organized by the European Athletic Association,[15] and won the 1500m in 4:12.69 at the Motonet Grand Prix Espoo 2022 in Finland.