| I. StrzałekDefensive midfielder |  Nieciecza | 🇵🇱Poland | 22 | 1 | 1 | 4.7 | 16▲7800%↩ | 34▲5.3%↩ |
| I. ZhelizkoDefensive midfielder |  Lechia Gdansk | 🇺🇦Ukraine | 25 | 7 | 5 | 9.5 | 57▲122.8% | 40▲10.3% |
| Iban SalvadorCentre-forward |  Wisla Plock | 🇬🇶Equatorial Guinea | 30 | 2 | 0 | 1.3 | 8▼28%↩ | 18▼65.6%↩ |
| Ivi LópezAttacking midfielder |  Raków Częstochowa | 🇪🇸Spain | 32 | 4 | 1 | 1.3 | 15▼46.5% | 14▼37.7% |
| Ivo RodriguesAttacking midfielder |  Motor Lublin | 🇵🇹Portugal | 31 | 2 | 4 | 2.2 | 20▼12.8%↩ | 21▼44.4%↩ |
| J. BiegańskiCentral midfielder |  Pogon Szczecin | 🇵🇱Poland | 23 | 0 | 0 | 4.8 | 8▲175.9%↩ | 33▼16.1%↩ |
| J. BlascoCentre-back |  Radomiak Radom | 🇫🇷France | 27 | 1 | 0 | 3.9 | 7▼69.6%↩ | 27▼56.2%↩ |
| J. BoschDefensive midfielder |  GKS Katowice | 🇳🇱Netherlands | 26 | 0 | 0 | 4.2 | 5▼89.5%↩ | 29▼57.9%↩ |
| J. BraneckiCentre-forward | Nieciecza | 🇵🇱Poland | 22 | 0 | 0 | 4 | 0 | 29 |
| J. Braut BrunesCentre-forward | Raków Częstochowa | 🇳🇴Norway | 25 | 16 | 0 | 10 | 48▲17.2% | 42▼1.2% |
| J. BudnickiCentre-back |  Korona Kielce | 🇵🇱Poland | 25 | 0 | 0 | 4.3 | 3 | 30 |
| J. BurekGoalkeeper | Wisla Plock | 🇵🇱Poland | 23 | 0 | 0 | 4.4 | 0 | 30 |
| J. BurićGoalkeeper |  Zaglebie Lubin | 🇧🇦Bosnia and Herzegovina | 39 | 0 | 0 | 0.6 | 19▲721.7% | 9▲228.6% |
| J. CélestineCentre-back |  Arka Gdynia | 🇫🇷France | 29 | 0 | 0 | 1.5 | 7▼78.7%↩ | 19▼64.4%↩ |
| J. ĆorlukaFull-back | Zaglebie Lubin | 🇧🇦Bosnia and Herzegovina | 31 | 1 | 1 | 2 | 28▲165.1% | 19▼6.6% |
| J. CzaplinskiCentral midfielder | Pogon Szczecin | 🏳️ | 19 | 0 | 1 | 4 | 3 | 35 |
| J. CzerwińskiCentre-back |  Piast Gliwice | 🇵🇱Poland | 35 | 0 | 0 | 0.7 | 14▼57.8% | 10▼47.1% |
| J. DanielCentral midfielder | Piast Gliwice | 🇵🇱Poland | 21 | 0 | 0 | 3.9 | 0 | 30 |
| J. ElitimCentral midfielder |  Legia Warszawa | 🇨🇴Colombia | 27 | 2 | 3 | 7.2 | 30▲181.3% | 32▼4.8% |
| J. GrelichGoalkeeper | Piast Gliwice | 🏳️ | 17 | 0 | 0 | 3.1 | 0 | 31 |
| J. GrobelnyGoalkeeper | Arka Gdynia | 🇵🇱Poland | 25 | 0 | 0 | 4.2 | 1▼89.9%↩ | 30▼20.7%↩ |
| J. GrzesikFull-back | Radomiak Radom | 🇵🇱Poland | 31 | 7 | 5 | 2.3 | 22▲39.4% | 24▼10% |
| J. KokosinskiCentre-forward | GKS Katowice | 🏳️ | 18 | 0 | 0 | 3.6 | 0 | 33 |
| J. KolanCentral midfielder | Zaglebie Lubin | 🇵🇱Poland | 22 | 1 | 1 | 4.7 | 17▲65.4% | 36▲3.4% |
| J. KowalskiCentral midfielder | Korona Kielce | 🇵🇱Poland | 20 | 0 | 0 | 3.8 | 0 | 31 |
| J. KrzywanskiGoalkeeper |  Widzew Łódź | 🇵🇱Poland | 23 | 0 | 0 | 4.2 | 0 | 29 |
| J. KubickiCentral midfielder |  Gornik Zabrze | 🇵🇱Poland | 30 | 3 | 4 | 3 | 33▲30.7%↩ | 25▼18.1%↩ |
| J. ŁabojkoDefensive midfielder | Motor Lublin | 🇵🇱Poland | 28 | 1 | 0 | 2.2 | 15▲43.9% | 24▼19.7% |
| J. LeszczyńskiFull-back | Legia Warszawa | 🇵🇱Poland | 19 | 0 | 0 | 3.9 | 5 | 34 |
| J. LewickiFull-back | Piast Gliwice | 🇵🇱Poland | 20 | 0 | 0 | 5 | 25 | 38▲14.7%↩ |
| J. LisCentre-back | Pogon Szczecin | 🇵🇱Poland | 24 | 0 | 0 | 4.2 | 1▼89.1% | 30▼13.2% |
| J. LokiloCentral midfielder | Piast Gliwice | 🇨🇩Congo DR | 27 | 0 | 3 | 3.8 | 11▲41.8%↩ | 27▼48.6%↩ |
| J. ŁukowskiCentral midfielder | GKS Katowice | 🇵🇱Poland | 30 | 0 | 0 | 1.1 | 0▼100%↩ | 15▼41.4%↩ |
| J. NapierajCentral midfielder | Raków Częstochowa | 🏳️ | 20 | 0 | 0 | 4 | 0 | 33 |
| J. NsameCentre-forward | Legia Warszawa | 🇨🇲Cameroon | 33 | 5 | 0 | 0.8 | 14▲267.6% | 10▼29.9% |
| J. OliveiraCentral midfielder | Arka Gdynia | 🇨🇭Switzerland | 30 | 0 | 0 | 1.1 | 3▼80.9%↩ | 15▼63.5%↩ |
| J. ShehuCentral midfielder | Widzew Łódź | 🇦🇱Albania | 27 | 4 | 3 | 7.9 | 46▲67.2% | 33▼8.1% |
| J. SnopczyńskiCentral midfielder | Radomiak Radom | 🇵🇱Poland | 21 | 0 | 0 | 4 | 0 | 31▼4.9% |
| J. SypekWinger | Zaglebie Lubin | 🇵🇱Poland | 25 | 3 | 3 | 5 | 16▼49.5%↩ | 35▼9.9%↩ |
| J. Wilson-EsbrandFull-back | Radomiak Radom | 🏴England | 23 | 0 | 1 | 4.9 | 4▲53.8%↩ | 34▼43%↩ |
| J. ŻewłakowWinger | Legia Warszawa | 🇵🇱Poland | 19 | 0 | 0 | 3.9 | 0 | 34 |
| Jakub KokosinskiWinger | GKS Katowice | 🏳️ | 18 | 0 | 0 | 3.6 | 0 | 33 |
| Jakub ZawadzkiCentre-back | Pogon Szczecin | 🇵🇱Poland | 17 | 0 | 0 | 3.2 | 0 | 32 |
| Jean CarlosCentral midfielder | Raków Częstochowa | 🇧🇷Brazil | 30 | 3 | 3 | 2.6 | 28▼7.4% | 22▼28.3% |
| Jesús Antonio Díaz GómezAttacking midfielder | Zaglebie Lubin | 🇨🇴Colombia | 27 | 1 | 2 | 3.9 | 8▲6.5%↩ | 27▼19.2%↩ |
| Jesús ImazAttacking midfielder |  Jagiellonia | 🇪🇸Spain | 35 | 13 | 6 | 1.2 | 51▲10.6% | 17▲5.6% |
| Jesús JiménezCentre-forward | Nieciecza | 🇪🇸Spain | 32 | 5 | 2 | 1.4 | 22 | 15▼0.7%↩ |
| JimeAttacking midfielder | Wisla Plock | 🇪🇸Spain | 27 | 1 | 2 | 3.9 | 8 | 27 |
| João MoutinhoCentre-back |  Lech Poznan | 🇵🇹Portugal | 28 | 0 | 0 | 2 | 8▼72.7%↩ | 24▼36.7%↩ |
| João PedroAttacking midfielder | Radomiak Radom | 🇧🇷Brazil | 23 | 0 | 1 | 4.8 | 4▼43.7%↩ | 33▼14.2%↩ |
| Joel PereiraFull-back | Lech Poznan | 🇵🇹Portugal | 29 | 2 | 5 | 3.7 | 31▼10.3% | 28▼15% |
| Jorge FélixCentre-forward | Piast Gliwice | 🇪🇸Spain | 34 | 4 | 3 | 0.9 | 22▲4.2% | 12▼20.7% |
| José Ángel PozoCentral midfielder | Pogon Szczecin | 🇪🇸Spain | 30 | 2 | 1 | 1.7 | 14▲51.6%↩ | 18▼16.4%↩ |
| Josema SánchezCentre-back | Gornik Zabrze | 🇪🇸Spain | 30 | 0 | 0 | 3 | 39▲25.6% | 25▼5.3% |
| Juande RivasCentre-back | Piast Gliwice | 🇪🇸Spain | 27 | 4 | 1 | 5.9 | 25▲169.2%↩ | 32▼37.4%↩ |
| K. AcostaCentral midfielder | Pogon Szczecin | 🇺🇸USA | 31 | 1 | 1 | 2 | 24▼32.2%↩ | 19▼33.7%↩ |
| K. AndrzejkiewiczCentre-forward | Widzew Łódź | 🇵🇱Poland | 21 | 0 | 0 | 3.9 | 0 | 30 |
| K. AngielskiCentre-forward | Pogon Szczecin | 🇵🇱Poland | 30 | 1 | 0 | 1.2 | 4▼77%↩ | 17▼44.5%↩ |
| K. BąkowskiGoalkeeper | Lech Poznan | 🇵🇱Poland | 23 | 0 | 0 | 4.5 | 0 | 31 |
| K. BochniarzGoalkeeper | Pogon Szczecin | 🇵🇱Poland | 17 | 0 | 0 | 3.2 | 0 | 32 |
| K. ChodynaCentral midfielder | Legia Warszawa | 🇵🇱Poland | 27 | 2 | 1 | 4.1 | 14▼6.6% | 28▼22.7% |
| K. CiszekFull-back | Korona Kielce | 🇵🇱Poland | 18 | 0 | 0 | 3.6 | 4▲37% | 33▲3.7% |
| K. ČustovićFull-back | Wisla Plock | 🇸🇪Sweden | 26 | 0 | 1 | 4.3 | 7▼51%↩ | 30▲12.1%↩ |
| K. CybulskiCentral midfielder | Widzew Łódź | 🇵🇱Poland | 20 | 0 | 0 | 3.7 | 0▼98.5% | 31▼15.2% |
| K. CzubakCentre-forward | Motor Lublin | 🇵🇱Poland | 26 | 19 | 3 | 9 | 58▲2820%↩ | 37▼20.1%↩ |
| K. GlikCentre-back |  Cracovia Krakow | 🇵🇱Poland | 38 | 0 | 0 | 0.1 | 0▼100% | 2▼78.5% |
| K. GolonkaGoalkeeper | Cracovia Krakow | 🇵🇱Poland | 19 | 0 | 0 | 3.7 | 0 | 32 |
| K. GrosickiCentre-forward | Pogon Szczecin | 🇵🇱Poland | 38 | 6 | 5 | 0.6 | 32▲19.1% | 10▼25.4% |
| K. GruszkowskiCentre-back | GKS Katowice | 🇵🇱Poland | 25 | 0 | 0 | 4.4 | 5▲17.5% | 31▼3.8% |
| K. GutowskiGoalkeeper | Lechia Gdansk | 🇵🇱Poland | 20 | 0 | 0 | 3.7 | 0 | 30 |
| K. HarcinskiGoalkeeper | Radomiak Radom | 🇵🇱Poland | 19 | 0 | 0 | 3.6 | 0 | 32 |
| K. JakóbczykCentre-forward | Lech Poznan | 🇵🇱Poland | 18 | 0 | 0 | 3.7 | 0 | 34 |
| K. JóźwiakCentral midfielder | Jagiellonia | 🇵🇱Poland | 28 | 0 | 0 | 2 | 4▲24.2%↩ | 23▼52.2%↩ |
| K. KamińskiGoalkeeper | Pogon Szczecin | 🇵🇱Poland | 35 | 0 | 0 | 0.3 | 3▼71.1%↩ | 6▼56.2%↩ |
| K. KarasekAttacking midfielder | Motor Lublin | 🇵🇱Poland | 24 | 1 | 0 | 4.6 | 3 | 32 |
| K. KnapDefensive midfielder | Cracovia Krakow | 🇵🇱Poland | 24 | 0 | 1 | 4.8 | 7▲711.1%↩ | 33▲3.8%↩ |
| K. KostorzCentre-forward | Pogon Szczecin | 🇵🇱Poland | 26 | 0 | 0 | 3.8 | 0▼100%↩ | 27▼53.8%↩ |
| K. KrzepiszGoalkeeper | Arka Gdynia | 🇵🇱Poland | 26 | 0 | 0 | 3.5 | 0 | 25 |
| K. KubicaCentral midfielder | Nieciecza | 🇵🇱Poland | 26 | 5 | 1 | 7.7 | 35▲2615.4%↩ | 32▲5.6%↩ |
| K. LismanCentral midfielder | Lech Poznan | 🇵🇱Poland | 20 | 0 | 1 | 4.4 | 5▼13.6% | 36▼3.2% |
| K. ŁukasiakCentral midfielder | GKS Katowice | 🇵🇱Poland | 22 | 0 | 0 | 4.7 | 4▼76.3%↩ | 34▼16.7%↩ |
| K. LukoszekCentral midfielder | Gornik Zabrze | 🇵🇱Poland | 24 | 1 | 1 | 5.1 | 9▼53.4% | 36▼5.3% |
| K. MatuszewskiCentral midfielder | Korona Kielce | 🇵🇱Poland | 24 | 2 | 1 | 5.7 | 24▲31.5% | 36▼1.6% |
| K. MinuczycDefensive midfielder | Korona Kielce | 🇵🇱Poland | 18 | 0 | 0 | 3.4 | 0 | 32 |
| K. NawrockiCentral midfielder | Widzew Łódź | 🏳️ | 18 | 0 | 0 | 3.4 | 0 | 31 |
| K. NowogońskiDefensive midfielder | Zaglebie Lubin | 🇵🇱Poland | 19 | 0 | 0 | 3.7 | 1 | 32▲4.5% |
| K. PalaczFull-back | Motor Lublin | 🇵🇱Poland | 23 | 0 | 1 | 4.7 | 3▼64% | 33▼7.9% |
| K. PiątkowskiFull-back | Legia Warszawa | 🇵🇱Poland | 26 | 0 | 3 | 8.4 | 35▲169.2%↩ | 36▼13.3%↩ |
| K. PlichtaCentre-forward | Motor Lublin | 🇵🇱Poland | 19 | 0 | 0 | 3.6 | 0 | 31 |
| K. PomorskiAttacking midfielder | Wisla Plock | 🇵🇱Poland | 30 | 0 | 0 | 1.1 | 0 | 15 |
| K. SezonienkoAttacking midfielder | Lechia Gdansk | 🇵🇱Poland | 23 | 5 | 2 | 5.5 | 23▲99.1% | 37▲2.2% |
| K. SkóraCentral midfielder | Arka Gdynia | 🇵🇱Poland | 22 | 0 | 0 | 4 | 0 | 29 |
| K. SmolińskiCentral midfielder | Pogon Szczecin | 🇵🇱Poland | 25 | 0 | 0 | 4.3 | 2▲40% | 30▼6.9% |
| K. SochańCentre-back | Zaglebie Lubin | 🇵🇱Poland | 22 | 0 | 0 | 4.2 | 0 | 31 |
| K. SotiriouCentre-back | Korona Kielce | 🇨🇾Cyprus | 30 | 5 | 2 | 2.8 | 29▲236% | 24±0% |
| K. StruskiCentral midfielder | Raków Częstochowa | 🇵🇱Poland | 25 | 0 | 1 | 4.9 | 12▼30.8%↩ | 34▼8.4%↩ |
| K. SzcześniakFull-back | Gornik Zabrze | 🇵🇱Poland | 25 | 0 | 1 | 4.8 | 12▼57.1% | 34▼13% |
| K. SzmytAttacking midfielder | Zaglebie Lubin | 🇵🇱Poland | 24 | 3 | 3 | 5.8 | 22▲46.9% | 41▲17% |
| K. SzymanekCentral midfielder | Motor Lublin | 🇵🇱Poland | 21 | 0 | 0 | 4 | 0 | 31 |
| K. SzymańskiGoalkeeper | Piast Gliwice | 🇵🇱Poland | 33 | 0 | 0 | 0.4 | 2 | 8▼33.9% |
