 | Mercure Augusta Barcelona Valles Hotel | 4.0 star rating | 102 | Granollers Area |
| Mercure Barcelona Condor Hotel | 4.0 star rating | 78 | Sarria Area |
 | Meson Castilla Atiram Hotel Barcelona | 2.0 star rating | 57 | Las Ramblas |
| Mey - One Bedroom Hotel Barcelona | Without Official Category | | Sarria Area |
 | MH Apartments Barcelona Hotel | 4.0 star rating | 25 | Eixample |
 | MH Apartments Center Hotel Barcelona | Apartment 1st Category | 16 | Eixample |
 | MH Apartments Family Hotel Barcelona | Apartment 1st Category | 11 | Sagrada Familia Area |
 | MH APARTMENTS GRACIA Hotel Barcelona | 4.0 star rating | 8 | Gracia Area |
 | MH Apartments Liceo Hotel Barcelona | 4.0 star rating | 10 | Las Ramblas |
 | MH Apartments Opera Rambla Hotel Barcelona | Apartment 1st Category | 9 | Las Ramblas |
 | MH Apartments Plaza Hotel Barcelona | 3.0 star rating | 6 | Las Ramblas |
 | MH Apartments Ramblas Hotel Barcelona | Apartment 1st Category | 10 | Las Ramblas |
 | MH Apartments S. Familia Hotel Barcelona | Apartment 1st Category | 8 | Sagrada Familia Area |
 | MH Apartments Suites Hotel Barcelona | Apartment 1st Category | 15 | Eixample |
 | MH Apartments Tetuan Hotel Barcelona | Apartment 1st Category | 28 | Plaza Catalunya |
 | MH Apartments Urban Hotel Barcelona | Apartment 1st Category | 14 | Eixample |
 | Midmost Barcelona Hotel | 4.0 star rating | 60 | Plaza Catalunya |
 | Midtown Luxury Apartments Hotel Barcelona | Without Official Category | 30 | Eixample |
 | Mihlton Barcelona Hotel | 2.0 star rating | 6 | Eixample |
| Miramar Hotel Barcelona | 3.0 star rating | 48 | Badalona |
 | Miramar Barcelona Hotel | 5.0 star rating | 75 | Sants-Montjuic |
 | Moderno Hotel Barcelona | 3.0 star rating | 57 | Las Ramblas |
 | Montanyà Hotel & Lodge Barcelona | 4.0 star rating | 240 | Seva Area |
 | Montserrat Apartment Hotel Barcelona | Vacationals Turistics Houses | 1 | Eixample |
 | Montserrat Hotel & Training Center Barcelona | 3.0 star rating | 99 | Montserrat |
 | Monument Hotel Barcelona | 5.0 star rating | 84 | Paseo de Gracia |
 | Moratos - Three Bedroom Hotel Barcelona | Without Official Category | | Castelldefells Area |
 | Mur-Mar Hotel Barcelona | 2 Keys | 33 | Las Ramblas |
 | Murmuri Hotel Barcelona | Superior 4* | 53 | Eixample |
 | Musik Boutique Hotel Barcelona | 1 Star | 23 | Barrio Gotico |
 | N 322 THE STREETS APARTMENTS Hotel Barcelona | Aparthotel 1* | 3 | Paseo de Gracia |
 | N 335 THE STREETS APARTMENTS Hotel Barcelona | Aparthotel 1* | 3 | Paseo de Gracia |
 | Nº 9 Streets apartments barcelona Hotel Barcelona | 4 Keys | 4 | Gracia Area |
 | Napols Hotel Barcelona | Aparthotel 2* | 26 | Eixample |
 | Negresco Princess Hotel Barcelona | 4.0 star rating | 129 | Eixample |
 | Neri Hotel Barcelona | 4.0 star rating | 22 | Barrio Gotico |
 | New Hotel Colon Barcelona | 3.0 star rating | 48 | Mataro Area |
 | NH Barcelona Barri Gòtic Hotel | 3.0 star rating | 71 | Barrio Gotico |
 | NH Barcelona Centro Hotel | 3.0 star rating | 156 | Barrio Gotico |
 | NH Barcelona Diagonal Center Hotel | 3.0 star rating | 129 | Diagonal N. |
 | NH Barcelona Eixample Hotel | 3.0 star rating | 81 | Sants-Montjuic |
 | NH Barcelona Entenza Hotel | 3.0 star rating | 48 | Sants-Montjuic |
 | NH Barcelona Fira Suites Hotel | 5.0 star rating | 50 | Hospitalet de Llobregat |
 | NH Barcelona La Maquinista Hotel | 3.0 star rating | 92 | La Maquinista Area |
| NH Barcelona Les Corts Hotel | 3.0 star rating | 81 | Sants-Montjuic |
 | NH Barcelona Ramblas Hotel | 3.0 star rating | 70 | Las Ramblas |
 | NH Barcelona Sant Just Hotel | 4.0 star rating | 150 | Sant Joan Despi |
 | NH Barcelona Stadium Hotel | 4.0 star rating | 106 | Camp Nou Area |
 | NH Belagua Hotel Barcelona | 3.0 star rating | 72 | Sarria Area |
 | NH Collection Barcelona Gran Hotel Calderón | 5.0 star rating | 255 | Plaza Catalunya |