Gil has been married four times. He had two daughters Nara and Marilia, with first wife Belina Aguiar, he was then married to famous singer Nana Caymmi, they had no children. His third wife was Sandra Gadelha with whom he had three children: Pedro, Preta and Maria. Sandra inspired one of his most beloved songs Drao, she was with him during the very hard times of Brazilian dictatorship and they both were exiled. His fourth wife is Flora Giordano. The couple has three children: Bem, Isabella and Jose. His first son Pedro Gil, Egotrip's drummer – died in a car accident in 1990. Preta Gil, an actress and singer, is his daughter with Sandra Gadelha.