The Clayton–Hamilton Jazz Orchestra is a big band led by Jeff Hamilton and brothers John Clayton and Jeff Clayton. The band was founded in Los Angeles in 1985.

On the album The L.A. Treasures Project (Capri, 2014):

• John Clayton: arco bass
• Jeff Clayton: alto saxophone
• Jeff Hamilton: drums
• Bijon Watson: trumpet^[1]
• Gilbert Castellanos: trumpet
• James Ford: trumpet
• Brian Swartz: trumpet
• Jamie Hovorka: trumpet
• Ira Nepus: trombone
• George Bohanon: trombone
• Ryan Porter: trombone
• Maurice Spears: trombone
• Keith Fiddmont: alto saxophone
• Rickey Woodard: tenor saxophone
• Charles Owens: tenor saxophone
• Lee Callet: baritone saxophone
• Tamir Hendelman: piano
• Graham Dechter: guitar
• Chris Lutti: bass
• Ernie Andrews: vocals
• Barbara Morrison: vocals^[2]

• Groove Shop (Capri, 1990)
• Heart and Soul (Capri, 1991)
• Absolutely! (Lake Street, 1995)
• Explosive! (Milt Jackson album, featuring the Clayton-Hamilton Jazz Orchestra) (Qwest/Warner Bros., 1999)
• Shout Me Out! (Fable/Lightyear, 2000)
• Live at MCG (MCG, 2005)
• Christmas Songs (Diana Krall album, featuring the Clayton-Hamilton Jazz Orchestra) (Verve, 2005)
• Dear Mr. Sinatra (John Pizzarelli album, featuring the Clayton-Hamilton Jazz Orchestra) (Telarc, 2006) – recorded in 2005
• Call Me Irresponsible (Michael Bublé album, song: "The Best Is Yet to Come") (143 Records/WB, 2007)
• Charles Aznavour & The Clayton-Hamilton Jazz Orchestra (EMI, 2009)
• Sundays in New York (Trijntje Oosterhui album, featuring the Clayton-Hamilton Jazz Orchestra) (Blue Note, 2011)
• The L.A. Treasures Project (Capri, 2014)^[3]
• Life Journey (Leon Russell album, songs: "Georgia On My Mind", "I Got It Bad (and That Ain't Good)", and "New York State of Mind") (Universal, 2014)^[4]
• And So It Goes (R.M.I. Records, 2023)

• Official website