Amadou Boucary, nom de guerre Djaffar Dicko and Yéro,[1] is a Burkinabe jihadist who has served as the leader of Ansarul Islam since 2017.

[3] He attended a Koranic school, and is reportedly very technology-savvy, and is addicted to online jihadist organizations and social media platforms.

[6] On April 1, 2023, the Burkinabe junta claimed that Dicko had been killed in drone strikes against hundreds of Ansarul Islam and JNIM fighters in Djibo Department, Burkina Faso.

[7][8] The United States government imposed sanctions on Dicko and JNIM second-in-command Sidane Ag Hitta on April 23, 2024, for the kidnapping of American nationals.

During clashes with the Islamic State in the Greater Sahara in the past, Dicko had executed several ISGS commanders and enlisted the remaining fighters.