 | Jongno Aubeson Hotel Seoul | 2.0 star rating | | Seoul City |
 | Jongno Cutee Hotel Seoul | 1 Star | 42 | Gangbuk |
 | JW Marriott Dongdaemun Square Seoul Hotel | 5.0 star rating | 170 | Seoul City |
 | JW Marriott Seoul Hotel | 5.0 star rating | 497 | Gangnam |
 | Kakao Hotel Seoul | 1 Star | 17 | Gangnam |
 | Karak Tourist Hotel Seoul | 3.0 star rating | 66 | Gangnam |
| Karashy Boutique Hotel Seoul | 4.0 star rating | 63 | Seoul City |
 | Kaya Tourist Hotel Seoul | 3.0 star rating | 52 | Gangbuk |
 | K City Hotel Seoul | 3.0 star rating | 38 | Seoul City |
 | Kensington Hotel Yeouido Seoul | 4.0 star rating | 235 | Gangnam |
 | Kimchee Dongdaemun Guesthouse Hotel Seoul | Pending Category | | Seoul City |
 | Kimchee Hongdae Guesthouse Hotel Seoul | Pending Category | | Seoul City |
 | Kobos Seoul Hotel | 3.0 star rating | 70 | Gangnam |
 | Koreana Hotel Seoul | 4.0 star rating | 345 | Gangbuk |
| Kpop Hotel Seoul Tower | 2.0 star rating | | Gangbuk |
| K Seoul Hostel Hotel | Hostel 1* | | Seoul City |
| K Seoul Hostel Hotel | 1 Star | 16 | Seoul City |
| Kukje Myeongdong Guesthouse Hotel Seoul | 1 Star | 9 | Seoul City |
 | KY - HERITAGE Hotel Dongdaemun Seoul | 4.0 star rating | 215 | Seoul City |
 | KY-HERITAGE HOTEL DONGDAEMUN Hotel Seoul | 4.0 star rating | 215 | Seoul City |
 | Kyo's House Hotel Seoul | 1 Star | 38 | Seoul City |
 | Kyung Nam Tourist Hotel Seoul | 3.0 star rating | 103 | Gangbuk |
| Kyungnam Tourist Hotel Seoul | 3.0 star rating | 103 | Seoul City |
 | La Nuit Hotel Shinchon Seoul | 3.0 star rating | 98 | Seoul City |
 | Lemon Tree Hotel Jongno Seoul | 2.0 star rating | 26 | Gangbuk |
 | LEX Tourist Hotel Seoul | 4.0 star rating | 63 | Seoul City |
| Lexvill Residence 2 Hotel Seoul | Pending Category | 124 | Seoul City |
| Life Style Hotel Seoul | 4.0 star rating | | Gangnam |
 | Life Style L Hotel Seoul | 2.0 star rating | 57 | Seoul City |
| Life Style R Hotel Seoul | 3.0 star rating | 92 | Seoul City |
| LimeStay Hotel Seoul | 2.0 star rating | 28 | Seoul City |
 | Loisir Myeongdong Hotel Seoul | 4.0 star rating | 619 | Seoul City |
| Lookhome Myeongdong Hotel Seoul | 2.0 star rating | 30 | Seoul City |
 | Lotte City Gimpo Airport Hotel Seoul | 4.0 star rating | 190 | Gangnam |
| Lotte City Hotel Gimpo Seoul | 4.0 star rating | | Seoul City |
 | Lotte City Hotel Guro Seoul | 4.0 star rating | 283 | Gangnam |
| Lotte City Hotel Mapo Seoul | 4.0 star rating | 282 | Gangbuk |
| Lotte City Hotel Mapo Seoul | 4.0 star rating | | Seoul City |
 | Lotte City Hotel Myeongdong Seoul | 4.0 star rating | 430 | Seoul City |
 | Lotte Hotel L7 Myeongdong Seoul | 4.0 star rating | 251 | Seoul City |
 | Lotte Hotel Seoul | 5.0 star rating | 1120 | Gangbuk |
 | Lotte Hotel World Seoul | 5.0 star rating | 469 | Gangnam |
| Makers Hotel Seoul | 3.0 star rating | | Gangbuk |
 | Manhattan Hotel Seoul | 2.0 star rating | 45 | Gangnam |
 | Manu Namdaemun Hotel Seoul | 4.0 star rating | 90 | Gangbuk |
 | Mare Dongdaemun Hotel Seoul | 3.0 star rating | 58 | Gangbuk |
 | Mare Gangnam Hotel Seoul | 1 Star | 34 | Gangnam |
| Marriott Executive Appartment Hotel Seoul | 5.0 star rating | 103 | Gangnam |
 | Maru Guesthouse Myeongdong Hotel Seoul | 1 Star | 28 | Gangbuk |
| Maru Guesthouse Seoul Station Hotel | 1 Star | 23 | Gangbuk |