Ambassador Auditorium, Concert hall in Pasadena, California, United States

Ambassador Auditorium is a 1,262-seat concert hall on the former Ambassador College campus in Pasadena, California. Its design has been compared to the Temple in ancient Israel, and its interiors feature Iranian onyx, African teak, wool carpets woven in India, and gold-leaf overlay furnishings.

Ambassador Auditorium was built under Herbert W. Armstrong for the Worldwide Church of God, its college functions and public concerts, and was officially opened by the Vienna Symphony Orchestra. The church ran 20 seasons and some 2,500 concerts until Joseph W. Tkach Sr. shut the series down in 1995. In 2004 Harvest Rock Church bought the auditorium and reopened it to the public.

The hall's name comes from its role on the Ambassador College campus, and concertgoers nicknamed it "The Carnegie Hall of the West." Its 20 public seasons ran from 1974 to 1995, drawing an estimated 2.5 million attendees to over 2,500 concerts and recitals. Harvest Rock Church, which bought the auditorium in 2004, reopened it to the public and hosts the Pasadena Symphony and the Colburn Orchestra there.

The main hall seats 1,262, so the venue suits chamber and mid-sized orchestral programmes rather than arena-scale shows. It stands on the former Ambassador College campus, most of whose other buildings were demolished between 2010 and 2019 for housing. Harvest Rock Church, which owns the hall, reopened it to the public and hosts the Pasadena Symphony and the Colburn Orchestra there.

The hall's acoustics and 1,262-seat scale led concertgoers to call it "The Carnegie Hall of the West". Between 1974 and 1995 it staged over 2,500 concerts and recitals, and an estimated 2.5 million attendees passed through its doors.