 | Inomaos Hotel Peloponesse | 2.0 star rating | 25 | Olympia |
 | Ionian Beach Hotel Peloponesse | 3.0 star rating | 80 | Lakopetra |
 | Ionion Hotel Peloponesse | 2.0 star rating | 33 | Kyparissia |
| Ionion Sea Hotel Peloponesse | 2.0 star rating | 65 | Pyrgos |
 | Ippoliti Hotel Peloponesse | 4.0 star rating | 19 | Nafplion |
 | Iria Beach Hotel Peloponesse | 3.0 star rating | 23 | Nafplion |
 | Iria Mare Holiday Club Hotel Peloponesse | 3.0 star rating | | Iria |
 | Irida Resort Peloponesse | Boutique | 12 | Kyparissia |
 | Itilo Traditional Hotel Peloponesse | 4.0 star rating | 9 | Mani |
 | John & George Hotel Peloponesse | 4.0 star rating | 62 | Tolo |
 | Kaiafas Lake Hotel Peloponesse | 3.0 star rating | 43 | Zacharo |
 | Kalamaki Beach Hotel Peloponesse | 4.0 star rating | 80 | Isthmia |
 | Kalamitsi Hotel Peloponesse | 3.0 star rating | 4 | Kardamyli |
 | Kalavryta Canyon Hotel & Spa Peloponesse | 4.0 star rating | 5 | Kalavryta |
 | Kamares Villa Hotel Peloponesse | 3.0 star rating | 10 | Gythion |
| Kandia's Castle Resort & Thalasso Peloponesse | 3.0 star rating | 105 | Nafplion |
 | Karalis Beach Hotel Peloponesse | 3.0 star rating | 14 | Pylos |
 | Karalis City Hotel Peloponesse | 3.0 star rating | 50 | Pylos |
 | Kardamili's Resort Peloponesse | Vacationals Turistics Houses | | Messini |
 | Karellion Hotel Peloponesse | 4.0 star rating | 40 | Loutraki |
| Kasimis Studios Hotel Peloponesse | 3.0 star rating | 10 | Kyparissia |
 | Kastro Maini Hotel Peloponesse | 2.0 star rating | 28 | Mani |
| Kastro Villas Mani Hotel Peloponesse | 4 Keys | 2 | Messini |
| Katikies Manis Hotel Peloponesse | Residence | 5 | Kardamyli |
| Kellia Hotel Peloponesse | 3.0 star rating | 11 | Monemvassia |
 | Kentrikon Hotel Peloponesse | 2.0 star rating | 20 | Lagadia |
 | King Minos Hotel Peloponesse | 4.0 star rating | 60 | Tolo |
 | King Saron Hotel Peloponesse | 4.0 star rating | 152 | Isthmia |
| Kinsterna Hotel Peloponesse | 5.0 star rating | 41 | Monemvassia |
| Kleopatra Hotel Apartments Peloponesse | 2.0 star rating | 10 | Stoupa |
 | Kleopatra Inn Hotel Peloponesse | 2.0 star rating | 35 | Kalamata |
 | Knossos Hotel Peloponesse | 2.0 star rating | 18 | Tolo |
| Kolosaka Antonia Hotel Peloponesse | 3.0 star rating | | Aeropolis |
 | Konstantinos Paleologos Hotel Peloponesse | 4.0 star rating | 10 | Patra-Rio |
 | Koralli Beach Hotel Peloponesse | 3 Keys | 93 | Kato Achaia |
 | Kouris Hotel Peloponesse | 2.0 star rating | 11 | Sparti |
| Koustenis Village Hotel Peloponesse | 3.0 star rating | | Dimitsana |
 | Kronio Hotel Peloponesse | 2.0 star rating | 23 | Olympia |
 | Kynaitha hotel Hotel Peloponesse | 3.0 star rating | 12 | Kalavryta |
 | Kyniska Hotel Peloponesse | 3.0 star rating | 15 | Monemvassia |
 | Kyparissia Beach Hotel Peloponesse | 3.0 star rating | 28 | Kyparissia |
 | Kyveli Suites Hotel Peloponesse | 4 Keys | 9 | Nafplion |
 | Lagadia Resort Peloponesse | 4.0 star rating | 12 | Vytina |
 | Lakonia Hotel Peloponesse | 2.0 star rating | 30 | Sparti |
 | La Sapienza Hotel Peloponesse | 4.0 star rating | 10 | Methoni |
 | Lazareto Hotel Peloponesse | 4.0 star rating | 15 | Monemvassia |
 | Le Convivial Suites & Spa Hotel Peloponesse | 5.0 star rating | 12 | Xylokastro |
| Leonidaion Guest House Hotel Peloponesse | 4 Keys | 7 | Olympia |
 | Levidi Suites Hotel Peloponesse | 4.0 star rating | 14 | Levidi |
 | Lida Hotel Peloponesse | 4.0 star rating | 40 | Sparti |