| 1 | KakaoBank | Korea |
| 2 | Kaleido Privatbank | Switzerland |
| 3 | Kapital Bank | Azerbaijan |
| 4 | Kapitalbank | Uzbekistan |
| 5 | Karafarin Bank | Iran |
| 6 | Karnataka Bank | India |
| 7 | Kasikornbank | Thailand |
| 8 | Kaspi Bank | Kazakhstan |
| 9 | Kathrein Privatbank | Austria |
| 10 | Kaw Valley Bank | USA |
| 11 | KB Kookmin Bank | Korea |
| 12 | KBC Bank | Belgium |
| 13 | KBC Bank Bulgaria | Bulgaria |
| 14 | KBC Bank Ireland | Ireland |
| 15 | Keareny Trust Company | USA |
| 16 | KEB Hana Bank | Korea |
| 17 | KEB HNB Rus | Russia |
| 18 | Kenanga Investment Bank | Malaysia |
| 19 | Kennett National Bank | USA |
| 20 | Kenya Commercial Bank (KCB) | Kenya |
| 21 | Keshavarzi Bank | Iran |
| 22 | KeyBank | USA |
| 23 | Keytrade Bank | Belgium |
| 24 | KfW Banking Group | Germany |
| 25 | Kiatnakin Bank | Thailand |
| 26 | Kina Bank | Papua New Guinea |
| 27 | Kingdom Bank | UK |
| 28 | Kiwibank | New Zealand |
| 29 | Klein Bank | USA |
| 30 | Komercijalna banka a.d. Beograd | Serbia |
| 31 | Komercijalna banka AD Budva | Montenegro |
| 32 | Komercijalna Banka AD Skopje | Macedonia |
| 33 | Komercni banka (KB) | Czech Republic |
| 34 | Kommunalkredit Austria | Austria |
| 35 | Kookmin Bank Cambodia | Cambodia |
| 36 | Kookmin Bank International | UK |
| 37 | Koshelev-Bank | Russia |
| 38 | Kotak Mahindra Bank | India |
| 39 | KredoBank | Ukraine |
| 40 | Krung Thai Bank | Thailand |
| 41 | Kutxabank | Spain |
| 42 | Kuveyt Türk Participation Bank | Turkey |
| 43 | Kuwait Finance House (KFH) | State of Kuwait |
| 44 | Kuwait International Bank | State of Kuwait |
| 45 | Kvika Bank | Iceland |
| 46 | Kwangju Bank | Korea |
| 47 | Kyrgyz Investment and Credit Bank | Kyrgyzstan |
| 48 | Kyrgyz-Swiss Bank | Kyrgyzstan |
| 49 | Kyrgyzkommertsbank | Kyrgyzstan |
