 | Sagrada Familia Area Hotel Barcelona | Without Official Category | 13 | Sagrada Familia Area |
| Sagrada Familia Estudios Hotel Barcelona | 1 Star | | Gracia Area |
 | Sagrada Familia Grassot - Indústria - One Bedroom Hotel Barcelona | Without Official Category | | Sagrada Familia Area |
 | Sagrada Familia - Two Bedroom Hotel Barcelona | Without Official Category | | Sagrada Familia Area |
 | Salles Hotel Ciutat del Prat Barcelona | 4.0 star rating | 130 | Barcelona Aeropuerto Area |
 | San Agustin Hotel Barcelona | 3.0 star rating | 75 | Las Ramblas |
 | Sansi Diputacio Hotel Barcelona | 4.0 star rating | 65 | Eixample |
 | Sansi Pedralbes Hotel Barcelona | 3.0 star rating | 60 | Sarria Area |
 | Santa Marta Hotel Barcelona | 2.0 star rating | 66 | El Born |
 | Sant Angelo Hotel Barcelona | 3.0 star rating | 50 | Sants-Montjuic |
 | Sant Antoni Hotel Barcelona | 3.0 star rating | 45 | Eixample |
 | Sant Felip - Three Bedroom Hotel Barcelona | Without Official Category | | Alella |
 | Santos Porta Fira Hotel Barcelona | Superior 4* | 320 | Hospitalet de Llobregat |
 | Sant Pere II Hotel Barcelona | 3.0 star rating | 50 | Rubi |
 | Sant Quirze de Besora Hotel Barcelona | 3.0 star rating | 14 | Sant Quirze de Besora |
| Sants-Les Corts Galileu - Two Bedroom Hotel Barcelona | Without Official Category | | Camp Nou Area |
 | Sants-Les Corts Travessera De Les Corts - Three Be Hotel Barcelona | Without Official Category | | Camp Nou Area |
 | Sants-Montjuïc Almeria - Two Bedroom Hotel Barcelona | Without Official Category | | Sants-Montjuic |
 | Sants-Montjuïc Rambla Badal - Four Bedroom Hotel Barcelona | Without Official Category | | Hospitalet de Llobregat |
 | Sants-Montjuïc: Teodoro Bonaplata - One Bedroom Hotel Barcelona | Without Official Category | | Parallel |
| Sants-Plaça Espanya - One Bedroom Hotel Barcelona | Without Official Category | | Sants-Montjuic |
| Sants-Plaça Espanya - One Bedroom No.2 Hotel Barcelona | Without Official Category | | Sants-Montjuic |
| Sants-Plaça Espanya - One Bedroom No.3 Hotel Barcelona | Without Official Category | | Sants-Montjuic |
| Sants-Plaça Espanya - One Bedroom No.4 Hotel Barcelona | Without Official Category | | Sants-Montjuic |
| Sants-Plaça Espanya - One Bedroom No.5 Hotel Barcelona | Without Official Category | | Sants-Montjuic |
 | SB Bcn Events Hotel Barcelona | Superior 4* | 190 | Castelldefells Area |
 | SB Diagonal Zero Barcelona Hotel | 4.0 star rating | 262 | Diagonal N. |
 | SB Icaria Barcelona Hotel | 4.0 star rating | 180 | Paseo MarÃtimo / Playa |
 | SB Plaza Europa Hotel Barcelona | 4.0 star rating | 243 | Hospitalet de Llobregat |
 | Sensation Authentic Gracia Hotel Barcelona | Vacationals Turistics Houses | 11 | Gracia Area |
 | Sensation Sagrada Familia Hotel Barcelona | Apartment 1st Category | 32 | Sagrada Familia Area |
 | Sercotel Amister Art Hotel Barcelona | 4.0 star rating | 59 | Eixample |
 | Sercotel Barcelona Gate Hotel | 4.0 star rating | 90 | Sant Joan Despi |
 | Sercotel Ciutat de Montcada Hotel Barcelona | 4.0 star rating | 105 | Montcada i Reixach |
 | Serhs Carlit Hotel Barcelona | 3.0 star rating | 38 | Eixample |
 | Serhs del Port Hotel Barcelona | 3.0 star rating | 48 | Parallel |
 | Serhs Rivoli Rambla Hotel Barcelona | 4.0 star rating | 126 | Las Ramblas |
 | Silken Concordia Hotel Barcelona | 4.0 star rating | 88 | Parallel |
 | Silken Gran Hotel Havana Barcelona | 4.0 star rating | 145 | Paseo de Gracia |
 | Silken Ramblas Hotel Barcelona | 4.0 star rating | 105 | Las Ramblas |
 | Silken St. Gervasi Hotel Barcelona | 3.0 star rating | 63 | Sarria Area |
 | Sixtytwo Barcelona Hotel | 4.0 star rating | 45 | Paseo de Gracia |
| Sky Apartments Güell Hotel Barcelona | 3 Keys | 2 | Eixample |
| Sofia Hotel Barcelona | 5.0 star rating | 500 | Camp Nou Area |
 | Soho Hotel Barcelona | 3.0 star rating | 51 | Eixample |
| Solarium Hotel Barcelona | Boarding House | 17 | Las Ramblas |
 | Somlom Hotel Barcelona | 3.0 star rating | 8 | Sant Esteve de Palautordera |
| Somnio Hostels Hotel Barcelona | 1 Star | 10 | Barcelona Aeropuerto Area |
| Som Nit Born Hotel Barcelona | 1 Star | 11 | El Born |
 | Spa Senator Barcelona Hotel | 4.0 star rating | 213 | Camp Nou Area |