| nickname(s) |  Niko |
| position(s) | Defender, Midfielder (Central) |
| preferred foot | Either |
| height [cm] • weight [kg] | 188 • |
| date of birth [dd/mm/yyyy] | - |
| place of birth | - |
| nationality(ies) |  Polish |
| team | gms |  |
 |
debut date |
| Men's Under 21s |
0 | 0 | 0 | - |
| Men's Under 20s |
3 | 0 | 2 | 09/09/2025 |
| Men's Under 19s |
2 | 0 | 0 | 14/11/2024 |
| Men's Under 16s |
0 | 0 | 0 | - |
| Men's Under 15s |
0 | 0 | 0 | - |
| • 22/09/2026 Men's Under 21s: Nikodem Leśniak Paduch has been added to the squad for 2027 UEFA Under 21 Championship qualifiers against Sweden and Italy |
| • 18/09/2026 Men's Under 20s: Squad selected for Elite League match against Portugal and Czechia |
| • 29/10/2025 Men's Under 20s: Squad selected for Elite League match against Czechia |
| • 23/09/2025 Men's Under 20s: Squad selected for Elite League match against Switzerland |
| • 20/08/2025 Men's Under 20s: Squad selected for Elite League match against Portugal |
| • 02/11/2024 Men's Under 19s: Squad selected for San Pedro del Pinatar Friendly Tournament |
| • 07/08/2024 Men's Under 19s: Squad selected for training camp in Siedlce (12 Aug - 14 Aug) |
| • 10/03/2022 Men's Under 16s: Squad selected for training camp in Warszawa (21 Mar - 24 Mar) |
| • 30/04/2021 Men's Under 15s: Squad selected for training camp in Pruszków (17 May - 20 May) |