- G. Calvin Weston
- Gabriel Coburger
- Gabriel Zucker
- Gaetano Liguori Trio
- Gaguik Mouradian
- Ganelin Trio Priority
- Gardener Explorer
- Gardener Loop
- Gardener Slipstream
- Garlic
- Garret Kaplan
- Garrison Fewell
- Gary Burton
- Gary Franks
- Gary Husband
- Gary Lloyd Noland
- Gary Lucas
- Gary Peacock
- Gato Barbieri
- Gebhard Ullmann
- Gebhard Ullmann, Tony Malaby, Drew Gress, Phil Haynes
- Geir Hjorthol
- Gematria
- Gene Mayman-Pritsker Project
- GeoGeMa
- Geordie McDonald
- Georg Graewe
- Georg Ruby Village Zone
- George Adams
- George Adams & Don Pullen Quartet
- George Cartwright
- George Cartwright's Gloryland Ponycat
- George E. Lewis
- George Gruntz
- George Haslam
- George Haslam, Paul Rutherford
- George Kovats
- George Russell
- George Russell Sextet
- Gerald Cleaver
- Gerardo Iacoucci
- Germán Jeselsohn
- Gerry Hemingway Quartet
- Gerry Hemingway Quintet
- Gewurzt
- Ghada music
- Ghédalia Tazartès
- Giacomo Merega
- Giancarlo Nicolai
- Giancarlo Nicolaides
- Giancarlo Schiaffini
- Giang Nguyen
- Gianluca Petrella
- Gianluigi Trovesi Octet
- Gianluigi Trovesi Ottetto
- Gianni Gebbia
- Gianni Lenoci
- Gilbert Isbin
- Gild The Lily
- Gilgamesh
- Ginger Baker
- Gino Robair
- Giorgio Albanese
- Giorgio Azzolini
- Giorgio Occhipinti
- Giovanni Battista Zotti
- Giovanni D'Iapico
- Gisela Horat
- Giuseppi Logan
- Glauco Venier
- Glenn Horiuchi
- Glenn Spearman
- Glenn Spearman Double Trio
- Globe Unity
- Globe Unity Orchestra
- GloryLand PonyCat
- Gnaarf
- Gnigler
- Goh Lee Kwang & Christian Meaas Svendsen
- Gojogo
- Gold Age
- Gold Sparkle Band
- Golden Boy (Fospassin)
- Gor2
- Goran Kajfes
- Gordon Beck Trio
- Gordon Grdina
- Gordon Grdina's Haram
- Gouashe
- Grachan Moncur
- Grachan Moncur III
- Grachan Moncur III Octet
- Graham Collier
- Graham Collier And The Collective
- Graham Haynes
- Graham Reynolds & The Golden Arm Trio
- Gran Cru
- Graphite Addiction
- Greenfish
- Greening From Ear To Ear
- Greetje Bijma
- Greg Bendian
- Greg Osby
- Greg Wall
- Gregg Bendian Project
- Gregg Bendian's Interzone
- Gregg Bendian's Trio Pianissimo
- Gregor Huebner
- Gregory Rogove
- Grencsó Open Collective
- Griot Galaxy
- Groundtruther
- Groupe Bénieu
- Gruppo Romano Free Jazz 1966/67
- Grzegorz Pleszynski
- Guachavanza Expirence
- Guerino Mazzola
- Guerrra
- Guido del Fabbro
- Guido Mazzon
- Guido Spannocchi
- Guilherme Rodrigues
- Guillermo E. Brown
- Gunerius Quack
- Gunslinging Bird
- Gunter Hampel Group
- Gurrisonic Orchestra
- Guska
- Gutbucket
- Guy Klucevsek
- Gvaste
- Günter Sommer