| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 101 | Kazmer | Polish | Announcing peace. | M | |
| 102 | Kelby | Polish | Dark; dark-haired. | M | |
| 103 | Koby | Polish | Dark; dark-haired. | M | |
| 104 | Kolby | Polish | Dark; dark-haired. | M | |
| 105 | Konrad | Polish | Bold adviser. | M | |
| 106 | Konstancji | Polish | Constant. | M | |
| 107 | Krzysztof | Polish | Polish form of Christopher 'Christ bearer'. | M | |
| 108 | Laiurenty | Polish | Polish form of Lawrence 'laurel'. | M | |
| 109 | Liuz | Polish | Light. | M | |
| 110 | Lubomir | Polish | Loves peace. | M | |
| 111 | Luboslaw | Polish | Loves glory. | M | |
| 112 | Ludoslaw | Polish | Loves glory. | M | |
| 113 | Ludwik | Polish | Renowned warrior. | M | |
| 114 | Lujan | Polish | Polish form of Lucian 'lright'. | M | |
| 115 | Lukasz | Polish | Polish form of Lucas 'light'. | M | |
| 116 | Maksym | Polish | Polish form of Maximillian 'great'. | M | |
| 117 | Maksymilian | Polish | Polish form of Maximillian 'great'. | M | |
| 118 | Mandek | Polish | Warrior. | M | |
| 119 | Marcinek | Polish | Warlike. | M | |
| 120 | Marek | Polish | Warlike. | M | |