Ysaora Jennifer Thibus (born 22 August 1991) is a French right-handed foil fencer, 2022 individual world champion, three-time Olympian, and 2020 team Olympic silver medalist.

In 2013, she received the Bernard Destremau Prize from the Académie des Sciences Morales et Politiques, which rewards a high-level athlete who combines competition and higher education.

She reached her first individual world podium in 2017 in Leipzig with a third place, then in 2018 in Wuxi where she lost 12–15 in the final to Alice Volpi.

[11] Thibus and American foil fencer Race Imboden met at a party after the Rio de Janeiro Olympic Games and began dating shortly afterward.

[13] She said that her positive doping test was due to "sexual contact" with her fiancé, former Olympic fencer Race Imboden.