| Hotel Nafore Seoul | 2.0 star rating | 52 | Seoul City |
| Hotel Noblesse and Merdian Seoul | 2.0 star rating | | Seoul City |
| Hotel Noblesse(Nowon) Seoul | 2.0 star rating | 84 | Nowon-Gu |
 | Hotel Peyto Gangnam Seoul | 4.0 star rating | | Gangnam |
 | Hotel PJ Myeongdong Seoul | 4.0 star rating | 272 | Gangbuk |
| Hotel Popgreen Seoul | 2.0 star rating | | Songpa Gu |
| Hotel Prima Seoul | 4.0 star rating | | Seoul City |
| Hotel Prince Seoul | 3.0 star rating | 100 | Seoul City |
| Hotel & Residence N more Seoul | Residence | | Gangnam |
| Hotel RiverPark(Gimpo) Seoul | 3.0 star rating | 58 | Seoul City |
| Hotel Seven Street Seoul (Formerly Sutton Hotel) | 3.0 star rating | | Gangbuk |
 | Hotel ShinShin Myeongdong Seoul | 4.0 star rating | 75 | Seoul City |
 | Hotel Skypark Kingstown Dongdaemun Seoul | 4.0 star rating | 408 | Dongdaemungu |
| Hotel Soulhada Seoul | 3.0 star rating | | Gangnam |
 | Hotel Star Seoul | 2.0 star rating | 50 | Gangnam |
| Hotel The Designers Cheongnyangni Seoul | 3.0 star rating | | Gangbuk |
 | Hotel The Designers Jongno Seoul | 4.0 star rating | 81 | Gangbuk |
| Hotel Together Yeouido Seoul | 3.0 star rating | 130 | Seoul City |
 | Hotel Tong Andante Insadong Seoul | 3.0 star rating | 23 | Seoul City |
 | Hotel Unique by Forêt Seoul | 3.0 star rating | 82 | Dongdaemungu |
 | HOTEL URI& Hotel Seoul | 4.0 star rating | 175 | Seoul City |
| Hotel Valentine Seoul | 3.0 star rating | 55 | Doksan |
| Hotel Venueg Seoul | 3.0 star rating | 163 | Gangbuk |
| Hotel Y House Namdaemun Seoul | 2.0 star rating | | Gangbuk |
 | Human Starville Cheongdam Hotel Seoul | 3.0 star rating | 187 | Gangnam |
 | Hyundai Residence Seoul Hotel | 3.0 star rating | 130 | Gangbuk |
| IBC Hotel Seoul | 2.0 star rating | | Gangbuk |
 | Ibis Ambassador Insadong Hotel Seoul | 3.0 star rating | 363 | Seoul City |
 | IBIS AMBASSADOR SEOUL DONGDAEMUN Hotel Seoul | 3.0 star rating | 242 | Dongdaemungu |
 | Ibis Ambassador Seoul Myeongdong Hotel | 4.0 star rating | 280 | Gangbuk |
 | Ibis Budget Ambassador Seoul Dongdaemun Hotel | 3.0 star rating | 195 | Gangbuk |
 | Ibis Styles Ambassador Gangnam Hotel Seoul | 3.0 star rating | 317 | Gangnam |
 | Ibis Styles Ambassador Seoul Myeongdong Hotel | 4.0 star rating | 180 | Gangbuk |
| Icon Hotel Insadong Seoul | 2.0 star rating | 40 | Seoul City |
 | IMI Hotel Seoul | 3.0 star rating | 41 | Gangnam |
 | Imperial Palace Boutique Hotel Seoul | 4.0 star rating | 133 | Gangbuk |
| IMT Hotel 1 Jamsil Seoul | 3.0 star rating | 55 | Seoul City |
| IMT Hotel 2 Jamsil Seoul | 3.0 star rating | 35 | Seoul City |
| Inn-The City Residence (Non Hyeon) Hotel Seoul | 3.0 star rating | 268 | Seoul City |
 | InterContinental Seoul COEX Hotel | 5.0 star rating | 651 | Gangnam |
| Irene Hotel Seoul | 2.0 star rating | 37 | Gangbuk |
 | Irene City Hotel Seoul | 2.0 star rating | 41 | Gangbuk |
 | ITW Hotel Seoul | 3.0 star rating | 40 | Seoul City |
| Jamsil Tourist Hotel Seoul | 2.0 star rating | 50 | Seoul City |
| Jarde in Palace Hotel Seoul | 3.0 star rating | 1 | Seongnam |
 | JBIS Tourist Hotel Seoul | 3.0 star rating | 53 | Gangnam |
 | JeonPoong Korean Tourism Hotel Seoul | 3.0 star rating | 56 | Gangbuk |
 | J Hill Hotel Seoul | 3.0 star rating | 88 | Seoul City |
 | JJ Guest House Namdaemun Hotel Seoul | 2.0 star rating | 20 | Gangbuk |
 | JJ House Myeongdong Hotel Seoul | 1 Star | 14 | Gangbuk |