| Channel | Videos Watched | YouTube |
|---|---|---|
| Marlon Asher | 1 | |
| Marlon Funaki | 1 | |
| Marlon Hoffstadt | 1 | |
| Maroon 5 | 1 | |
| Marques Brownlee | 3 | |
| Married withChildren | 1 | |
| MarsMusic | 1 | |
| Marsh | 1 | |
| Marshall Jefferson | 2 | |
| Marshmello | 3 | |
| MarshmelloVEVO | 1 | |
| Marso 94 | 1 | |
| Marta SánchezPavón | 1 | |
| Martha Argerich | 12 | |
| Martin Adams | 3 | |
| Martin Garrix | 2 | |
| Martin Garrix | 1 | |
| Martin Hannett | 1 | |
| Martin Ikin | 1 | |
| Martin Landström | 3 | |
| Martin Trifonov | 1 | |
| Martin VDA | 1 | |
| Martin Zarzar | 1 | |
| Martina McBride | 1 | |
| Maruvie | 7 | |
| Marvin Gaye | 2 | |
| Mary Gauthier | 1 | |
| Mary J. Blige | 2 | |
| María Dueñas | 1 | |
| Marília Mendonça | 1 | |
| Mas Mundo | 1 | |
| Masahiro Tokuda | 1 | |
| Mascom Records | 2 | |
| Masego | 13 | |
| Mashaan Alshammari | 2 | |
| Masicka | 3 | |
| Masked Man | 1 | |
| Masked Wolf | 1 | |
| Mason Embry Trio | 1 | |
| Massh | 1 | |
| Massimo Faraò | 5 | |
| Massive Attack | 10 | |
| MassiveAttackVEVO | 1 | |
| Master Plaster | 1 | |
| Master Yellow | 1 | |
| MasterClass | 1 | |
| MasterHigure | 1 | |
| Matador | 1 | |
| Matador Records | 7 | |
| Mate Rimac | 1 |