Güçlü is a Turkish surname.
Güçlü may also refer to the following settlements in Turkey: Güçlü, Cizre, a village in Şırnak Province Güçlü, Demirözü, a village in Bayburt Province Güçlü, Kızıltepe, a village in Mardin Province Güçlü, Lice, a neighbourhood in Diyarbakır Province Güçlü, Silvan, a neighbourhood in Diyarbakır Province Güçlü, Yüksekova, a village in Hakkâri Province
Güçlü refers to an element in Turkish makam theory.