Yaya Dillo Djérou Bétchi (Arabic: يحيى ديلو جيرو; 18 December 1974 – 28 February 2024) was a Chadian politician, and president of the opposition Socialist Party Without Borders in 2021 until his assassination in 2024.

[4] Born on 18 December 1974, in Kaoura, Ennedi-Est, Chad,[5][6] a teenaged Dillo participated in an offensive that culminated in Idriss Déby ousting President Hissène Habré in a coup d'état in 1990.

Dillo, a former telecommunications engineer, had left Déby's party MPS and become president of a revolutionary junta ("président du collège révolutionnaire") heading an organization called Platform for Change, Unity and Democracy (SCUD), a rebel alliance.

[11][12] Dismissed after the start of the COVID-19 pandemic, he spoke out against a "conflict of interest" between the Grand Cœur foundation, run by First Lady Hinda Déby Itno and the Chadian government.

[15] The attacks were condemned by the African Union, and French Minister for Europe and Foreign Affairs Jean-Yves Le Drian called on an impartial investigation into the incident.

Oumar Mahamat Kedelaye, Chad's national prosecutor, alleged that Dillo led a well-armed group of men in 11 vehicles during the shooting and that his death was related to the attack.

[18] This attack came after the arrest of Ahmed Torabi, a PSF member accused of trying to assassinate the president of the Supreme Court,[1] and a day after the announcement that the presidential elections would be held on 6 May.