Dudamel was born in Barquisimeto, Venezuela. His father played the trombone. He studied music when he was quite young, and learned the violin when he was ten. He also studied composition. He became involved with El Sistema, an organization in Venezuela to help children from poorer families to learn musical instruments. He went to the Jacinto Lara Conservatory and then the Latin-American Violin Academy, learning the violin.
He began to study conducting in 1995. In 1999, he became music director of the Orquesta Sinfónica Simón Bolívar, the national youth orchestra of Venezuela, and toured several countries.
In 2005, Gustavo Dudamel conducted at the BBC Proms when Neeme Järvi was ill. He became Principal Conductor of the Gothenburg Symphony. He still conducts the Simón Bolívar National Youth Orchestra