Kays Ruiz-Atil (born 26 August 2002) is a French professional footballer who plays as a midfielder for Challenger Pro League club Francs Borains.

[5] After the Barcelona transfer ban due to illegal signings of underage players,[6] Ruiz-Atil moved to Paris Saint-Germain (PSG) in 2015.

[7] But this move later proved to be controversial in the 2018 Football Leaks; there, the Parisian club was accused of having made an illegal transfer, with a suspicious employment of his father Radouan.

[3] At this time, his public image did not seem to have suffered greatly from the Football Leaks, Ruiz-Atil having for instance signed a big contract with Adidas.

However, in February 2021, one month after the arrival of Mauricio Pochettino as head coach, he was sent back to train with the under-19 squad, with his departure at the end of his contract in June 2021 becoming increasingly likely according to various reports.

[20] Having not featured in a match since November 2022, Ruiz-Atil joined Challenger Pro League side Francs Borains on a free transfer in May 2024.