Artistes
- o.blaat
- Keith O’Brian
- James O’Callaghan
- Liam O’Gallagher
- Stephen O’Malley
- Michael O’Neill
- Jim O’Rourke
- Ingrid Obled
- Vidna Obmana
- Michael Obst
- Octopus Inc
- Bruce Odland
- Christine Ödlund
- Paul Oehlers
- Michael Oesterle
- Oeuf Korreckt
- Mari Ohno
- Junya Oikawa
- Hisashi Okamoto
- Franz Martin Olbrisch
- Alexandre F Oliveira
- Ariel Oliveira
- João Pedro Oliveira
- Levy Oliveira
- Mark Oliveiro
- John Oliver
- Pauline Oliveros
- Ralf R Ollertz
- Harvey Olnick
- Kent Olofsson
- Daniel Olson
- Mike Olson
- Justice Olsson
- Aki Onda
- Lulu Ong
- Kazuya Oohata
- Daphne Oram
- L’ Orchestre de granulation
- Orchid Spangiafora
- Cecilie Ore
- Joaquín Orellana
- Original Instrument
- Tanja Orning
- Gabriela Ortiz
- José Antonio Orts
- Ryszard Osada
- Ed Osborn
- Olga Oseth
- Daniel Osorio
- Stefan Östlund
- Matthew Ostrowski
- John Oswald
- Yasuhiro Otani
- Yoshihide Otomo
- Felipe Otondo
- Julien Ottavi
- Allen Otte
- Louis Ouellet
- Alexandre Ouzounoff
- B Owen
- Zeynep Özcan
- Ozan Özvatan