"Afro Blue" is a landmark Latin jazz composition by Cuban-born percussionist and bandleader Mongo Santamaria, first performed and recorded in the late 1950s during his work with Cal Tjader and on his own 1959 album Mongo for Fantasy Records. Santamaria crafted the piece intuitively from traditional Afro-Cuban folkloric sources, drawing on Abakua and bembe rhythmic traditions as well as Yoruba-derived songs dedicated to the deity Obatala. The composition is built around a hypnotic, driving polyrhythmic foundation in 6/8 time, layering African-rooted cross-rhythms that were unprecedented in jazz at the time. The original arrangement featured congas, flute, and marimba, giving it an earthy, percussive character that emphasized rhythmic propulsion over complex harmonic movement. A middle section in rumba guaguanco style with cascara patterns provides structural contrast. "Afro Blue" holds a place of singular importance in jazz history as the first widely recognized jazz standard to foreground African polyrhythmic structure, comparable in its cultural impact to Dizzy Gillespie's "Manteca" or "A Night in Tunisia." John Coltrane's celebrated modal reinterpretation in 1960 helped cement the tune's place in the jazz canon, and it has since been recorded by a vast range of artists including Abbey Lincoln and Dizzy Gillespie, each bringing distinct stylistic approaches to Santamaria's deeply rooted original.