Barney McAll (born Melbourne, Australia, 1966) is a jazz pianist and composer who lives in Melbourne, Australia. McAll joined Gary Bartz's band in 1997, and has also played with the Josh Roseman Unit, Fred Wesley and the JB's, Groove Collective, and Kurt Rosenwinkel's "Heartcore". He completed his Bachelor of Music at the Victorian College of the Arts in Melbourne, and studied in New York and Cuba. Barney is the brother of pianist John McAll.

His ensembles include M.O.D.A.S, GRAFT, ASIO (Australian Symbiotic Improvisers Orbit), and Non-Compliance. His most recent ensemble is Precious Energy, which features members from Hiatus Kaiyote, Laneous, and Rita Satch. He released a political Black Mirror pop album in 2018 called Global Intimacy under the pseudonym TQX.

He was awarded the Australia Council Fellowship in 2007 and worked as musical director for Australian vocalist Sia from 2011 to 2012.

McAll is the 2015 recipient of the Peggy Glanville-Hicks composer residency in Sydney, Australia and has curated the APRA AMCOS Art Music Awards from 2019 to 2022.

He has played in over 100 albums as a sideman and has recorded or toured internationally with musicians such as Dewey Redman, Roy Ayers, Maceo Parker, Jimmy Cobb, Eddie Henderson, Aloe Blacc, Bernie Worrell, Peter Apfelbaum, Billy Harper, Daniel Merriweather and Vernel Fournier. At the ARIA Music Awards of 2015 McAll won Best Jazz Album for Mooroolbark.