 | Maduzi Hotel Bangkok | 5.0 star rating | 41 | Sukhumvit |
 | Ma Hotel Bangkok | 4.0 star rating | 243 | Silom |
 | Maitria Hotel Sukhumvit 18- A Chatrium Collection Bangkok | 4.0 star rating | 131 | Sukhumvit |
 | Majestic Grande Hotel Bangkok | 4.0 star rating | 251 | Sukhumvit |
 | Majestic Suites Hotel Bangkok | 3.0 star rating | 55 | Sukhumvit |
 | Makkasan Inn Hotel Bangkok | 2.0 star rating | 40 | Pratunam-Petchburi |
 | Mall Suites Express Hotel Bangkok | Aparthotel 3* | 104 | Ladprao- Chatuchak |
 | Mandarin Hotel Managed By Centre Point Bangkok | 4.0 star rating | 374 | Silom |
 | Mandarin Oriental Bangkok Hotel | 5.0 star rating | 393 | Riverside |
 | Mango Lagoon Place Bangkok Hotel | Pending Category | 35 | Don Muang |
 | Maple Hotel Bangkok | 4.0 star rating | 478 | Sri Nakarin |
 | Mariya Boutique Residence Hotel Bangkok | 3.0 star rating | 36 | Suvarnabhumi Airport |
 | Marriott Executive Apartment Sathorn Vista Bangkok Hotel | 5.0 star rating | 187 | Sathorn |
| MarriottExecutiveApartmentsBangkokSukhumvitThonglo Hotel | 5.0 star rating | 74 | Sukhumvit |
 | Marriott Executive Apartments Mayfair Bangkok Hotel | 4.0 star rating | 162 | Langsuan-Wireless Road |
 | Marriott Executive Apartments Sukhumvit Park Hotel Bangkok | 4.0 star rating | 300 | Sukhumvit |
 | Marsi Hotel Bangkok | 4.0 star rating | 80 | Sukhumvit |
 | Maruay Garden Hotel Bangkok | 3.0 star rating | 315 | Don Muang |
 | Marvel Hotel Bangkok | 3.0 star rating | 221 | Sukhumvit |
 | Marvin Suites Hotel Bangkok | 3.0 star rating | 60 | Sathorn |
 | Maxim's Inn Hotel Bangkok | 3.0 star rating | 30 | Sukhumvit |
 | Maxx Hotel Bangkok | 3.0 star rating | 350 | Rama 9- Ratchadapisek |
 | Mercure Bangkok Makkasan Hotel | 4.0 star rating | 180 | Pratunam-Petchburi |
 | Mercure Bangkok Siam Hotel | 4.0 star rating | 189 | Siam-Ratchadamri |
 | Mercure Bangkok Sukhumvit 11 Hotel | 4.0 star rating | 232 | Sukhumvit |
 | Merisess Sukhumvit 16 Hotel Bangkok | 3.0 star rating | 23 | Sukhumvit |
 | Mermaid Bangkok Hotel | 4.0 star rating | 69 | Sukhumvit |
 | MeStyle Place Hotel Bangkok | 3.0 star rating | 73 | Rama 9- Ratchadapisek |
 | Metropoint Bangkok Hotel | 3.0 star rating | 172 | Ramkamhaeng |
 | Metropole The Crest Collection by Ascott Hotel Bangkok | 5.0 star rating | 116 | Pratunam-Petchburi |
 | Metropolitan by COMO, Bangkok Hotel | 5.0 star rating | 171 | Sathorn |
| Metro Pratunam Boutique Hotel Bangkok | 3.0 star rating | | Pratunam-Petchburi |
 | Metro Resort Pratunam Bangkok | 4.0 star rating | 152 | Pratunam-Petchburi |
| Metz Pratunam Hotel Bangkok | 3.0 star rating | 25 | Pratunam-Petchburi |
 | M G Mansion Hotel Bangkok | 3.0 star rating | 18 | Sukhumvit |
| MHC Guesthouse Hotel Bangkok | 3.0 star rating | 15 | Sukhumvit |
 | Miami Hotel Bangkok | 1 Star | 66 | Sukhumvit |
 | Mida Airport Hotel Bangkok | 3.0 star rating | 125 | Don Muang |
 | Mida Hotel Ngamwongwan Bangkok | 3.0 star rating | 135 | Nontaburi |
| Mido Hotel Bangkok | 2.0 star rating | 230 | Pratunam-Petchburi |
 | Millennium Hilton Bangkok Hotel | 5.0 star rating | 533 | Riverside |
 | Miracle Grand Convention Hotel Bangkok | 4.0 star rating | 261 | Don Muang |
 | Miracle Suvarnabhumi Airport Hotel Bangkok | 4.0 star rating | 170 | Suvarnabhumi Airport |
 | Miramar Hotel Bangkok | 4.0 star rating | 128 | Chinatown-Old City |
 | Mirth Sathorn Bangkok Hotel | 3.0 star rating | 20 | Sathorn |
 | Modena by Fraser Bangkok Hotel | 4.0 star rating | 238 | Klong1 |
 | Mode Sathorn Hotel Bangkok | 4.0 star rating | 201 | Sathorn |
 | Montara Serviced Apartment Thonglor 25 Hotel Bangkok | 3.0 star rating | 41 | Chinatown-Old City |
 | Montien Hotel Bangkok | 4.0 star rating | 475 | Silom |
 | Montien Riverside Hotel Bangkok | 4.0 star rating | 462 | Riverside |