| Ref |
nom du pays |
capitale |
monnaies |
continent |
drapeau |
| KAB | KABARDINO-BALKARIEN (RYSSLAND) les timbres | Nal`chik | ruble = 100 kopecks | Europe |  |
| KAL | KALMYKIEN (RYSSLAND) les timbres | Elista | ruble = 100 kopecks | Europe |  |
| CGE | KAMBODJA (KAMPUCHEA) les timbres | Phnom Penh | riel =100 sen | Asie |  |
| CAM | KAMERUN les timbres | Yaounde | CFA franc = 100 centimes | Afrique |  |
| CAN | KANADA les timbres | Ottawa | Canadian dollar = 100 cents | Amérique |  |
| CAP | KAP VERDE les timbres | Praia | Cape Verde escudo = 100 centavos | Afrique |  |
| KAT | KARATJAJ-TJERKESSISKA (RYSSLAND) les timbres | Cherkessk | ruble = 100 kopecks | Europe |  |
| CLI | KARELEN (RYSSLAND) les timbres | Petrozavodsk | ruble = 100 kopecks | Europe |  |
| ADK | KATHIRI-STATEN HADHRAMAUT I ADEN les timbres | | dinar = 1000 fils | Asie |  |
| ADY | KATHIRI-STATEN SEIYUN I ADEN les timbres | | dinar = 1000 fils | Asie |  |
| KAZ | KAZAKSTAN les timbres | Astana | tenge = 100 tiyn | Asie |  |
| KEN | KENYA les timbres | Nairobi | Kenyan shilling = 100 cents | Afrique |  |
| CHI | KINA (FOLKREPUBLIKEN) les timbres | Beijing | renminbi yuan = 100 fen | Asie |  |
| KAN | KIRGIZISTAN les timbres | Bishkek | Kyrgyzstani som = 100 tyiyn | Asie |  |
| KIR | KIRIBATI les timbres | South Tarawa | Australian dollar = 100 cents | Océanie |  |
| COC | KOKOSÖARNA les timbres | West Island | Australian dollar = 100 cents | Océanie |  |
| KOL | KOLYMA (RYSSLAND) les timbres | Magadan | ruble = 100 kopecks | Asie |  |
| KOM | KOMI (RYSSLAND) les timbres | Syktyvkar | ruble = 100 kopecks | Europe |  |
| COM | KOMORERNA (FRANSKT TERRITORIUM) les timbres | Moroni | Comorian franc = 100 centimes | Afrique |  |
| CET | KOMORERNA (REPUBLIKEN) les timbres | Moroni | Comorian franc = 100 centimes | Afrique |  |
| CON | KONGO DEMOKRATISKA REPUBLIKEN (DRK) les timbres | Kinshasa | Congolese franc = 100 centimes (until 1967 and from 1998), zaire = 100 makuta (1967-1998) | Afrique |  |
| COF | KONGO REPUBLIKEN (BRAZZAVILLE) les timbres | Brazzaville | CFA franc = 100 centimes | Afrique |  |
| KOR | KORYAKIEN (RYSSLAND) les timbres | Palana | ruble = 100 kopecks | Asie |  |
| KOS | KOSOVO les timbres | Pristina | euro = 100 cents | Europe |  |
| CRI | KRIM (UKRAINA) les timbres | Simferopol | ruble = 100 kopecks | Europe |  |
| CRO | KROATIEN les timbres | Zagreb | kuna = 100 lipas | Europe |  |
| CUB | KUBA les timbres | Havana | Cuban peso = 100 centavos | Amérique |  |
| YEM | KUNGARIKET JEMEN les timbres | Ta`izz | North Yemini rial = 40 bogaches | Asie |  |
| KOU | KURILERNA (RYSSLAND) les timbres | | ruble = 100 kopecks | Asie |  |
| KUW | KUWAIT les timbres | Kuwait City | Kuwaiti dinar = 1000 fils | Asie |  |