VAH-123, nicknamed the Professionals from 1961 onward, was a Heavy Attack Squadron of the U.S. Navy, based at NAS Whidbey Island, Washington. It was established on 15 June 1957 as Heavy Attack Training Unit, Pacific (HATUPAC). On 29 June 1959 it was redesignated as VAH-123. The squadron was disestablished on 1 February 1971, after eleven years of service.