The Hollywood Bowl Orchestra (HBO) is a symphony orchestra that is managed by the Los Angeles Philharmonic Association and plays the vast majority of its performances at the Hollywood Bowl.

John Mauceri led the orchestra from its founding in 1990 until he stepped down after the 2006 Hollywood Bowl season. During this time, his titles included Conductor, Principal Conductor, and finally, Director. He now holds the title of Founding Director.

In March 2008, Thomas Wilkins was named as the Principal Guest Conductor of the orchestra for a two-year contract that would begin in the summer of 2008. The contract was extended multiple times until 2014 when Wilkins was promoted to Principal Conductor.