| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 161 | Kaspar | Polish | Keeper of the treasure. Form of Caspar. | M | |
| 162 | Kassia | Polish | Pure. | F | |
| 163 | Katanyna | Polish | Polish form of Catherine. | F | |
| 164 | Katarina | Polish | Variant of Katherine. Pure. | F | |
| 165 | Katine | Polish | Polish form of Catherine. | F | |
| 166 | Katrine | Polish | Polish form of Catherine. | F | |
| 167 | Katy | Polish | Polish form of Catherine. | F | |
| 168 | Kazimierz | Polish | Declares peace. | M | |
| 169 | Kazimir | Polish | Variant of Casimir: Bringer of peace; announcing peace. | M | |
| 170 | Kazmer | Polish | Announcing peace. | M | |
| 171 | Kelby | Polish | Dark; dark-haired. | M | |
| 172 | Khrystyna | Polish | Variant of Christina: Christian. Note: 'This Database is Copyright Muse Creations Inc. 2000'.. | F | |
| 173 | Koby | Polish | Dark; dark-haired. | M | |
| 174 | Kolby | Polish | Dark; dark-haired. | M | |
| 175 | Konrad | Polish | Bold adviser. | M | |
| 176 | Konstancji | Polish | Constant. | M | |
| 177 | Krysta | Polish | Christian. | F | |
| 178 | Krystka | Polish | Christian. | F | |
| 179 | Krystyn | Polish | Christian. | F | |
| 180 | Krystyna | Polish | Variant of Christine. Christian. | F | |