- 1 Owsey
- 2 Oskar Schuster
- 3 Ohm-G
- 4 Orchestre National Bordeaux Aquitaine
- 5 Omar Ruiz
- 6 Odysseus
- 7 Ogryzek
- 8 ODK Beats
- 9 Outertone
- 10 Oliver Malcolm
- 11 Oliver Green
- 12 Oskar
- 13 Old Man Saxon
- 14 Oceanic
- 15 Oswald
- 16 Ogün Soydemir
- 17 Oxlade
- 18 OmenXIII
- 19 Orphax
- 20 Oovation
- 21 Optimuss
- 22 Official el de la O
- 23 Okko
- 24 Output
- 25 Ola Gjeilo
- 26 Onsra
- 27 Oxmo Puccino
- 28 Olivver the Kid
- 29 Oh No
- 30 Owen Grey