| Jaadla, Hannaliis | Estonia WOCO |  Estonia | Centrocampista |
| Jääger, Enar | Estonia | Estonia | Defensa |
| Jääkeläinen, Juha-Pekka | Finland U17 |  Finlandia | Centrocampista |
| Jaakkola, Anssi | Kilmarnock (SCO) | Finlandia | Portero |
| Jaakonsaari, Tia-Maria | PK-35 (FIN) | Finlandia | Centrocampista |
| Jääskeläinen, Jussi | West Ham (ENG) | Finlandia | Portero |
| Jablončíková, Michaela | Czech Republic WU17 |  República Checa | Defensa |
| Jaccarini, Beppe | Malta U17 |  Malta | Defensa |
| Jack, Ryan | Aberdeen (SCO) / Scotland / Scotland U21 |  Escocia | Centrocampista |
| Jackson, Simeon | Norwich (ENG) |  Canadá | Delantero |
| Jackson, Giuliano | Racing Union (LUX) / Luxembourg U21 / Luxembourg U19 |  Luxemburgo | Defensa |
| Jackson, Carla | Scotland WU17 | Escocia | Centrocampista |
| Jackson Martínez | Porto (POR) |  Colombia | Delantero |
| Jacobo | PAOK (GRE) |  España | Portero |
| Jacobsen, Lars | København (DEN) / Denmark |  Dinamarca | Defensa |
| Jacobsen, Erling | Faroe Islands U21 / Faroe Islands |  Islas Feroe | Defensa |
| Jacobsen, Sigrid | Klaksvík (FRO) / Faroe Islands WOCO | Islas Feroe | Centrocampista |
| Jacobsen, Róaldur | Faroe Islands U21 | Islas Feroe | Centrocampista |
| Jacobsen, Monrad | Faroe Islands U21 | Islas Feroe | Defensa |
| Jacobsen, Elsa | Faroe Islands WU19 | Islas Feroe | Centrocampista |
| Jacobsen, Jógvan | Faroe Islands U17 | Islas Feroe | Centrocampista |
| Jacobsen, Jón | Suduroy (FRO) / Faroe Islands U19 | Islas Feroe | Defensa |
| Jacobsen, Rúna | Faroe Islands WU17 | Islas Feroe | Delantero |
| Jafarguliyev, Emin | Sumqayıt (AZE) / Azerbaijan U21 |  Azerbaiyán | Defensa |
| Jafarov, Elnur | Xäzär Länkäran (AZE) / Azerbaijan U17 | Azerbaiyán | Delantero |
| Jafarova, Gulsum | Azerbaijan WU19 | Azerbaiyán | Delantero |
| Jafarzade, Sevinj | Azerbaijan WU19 | Azerbaiyán | Centrocampista |
| Jafetsson, Aron Grétar | Stjarnan (ISL) / Iceland U19 |  Islandia | Defensa |
| Jäger, Annabel | Wolfsburg (GER) / Germany WU19 |  Alemania | Centrocampista |
| Jäger, Lukas | Austria U19 |  Austria | Defensa |
| Jaggi, Nordyn | Minerva (SUI) |  Suiza | Centrocampista |
| Jagielka, Phil | Everton (ENG) / England |  Inglaterra | Defensa |
| Jagiełło, Aleksander | Legia (POL) / Poland U19 |  Polonia | Centrocampista |
| Jagne, Pa Modou | St Gallen (SUI) |  Gambia | |
| Jagodinskis, Vitālijs | Daugava Rīga (LVA) / Latvia U21 |  Letonia | Centrocampista |
| Jahhimovitš, Aleksei | Estonia U21 | Estonia | Defensa |
| Jahić, Sanel | Karabükspor (TUR) |  Bosnia-Herzegovina | Centrocampista |
| Jahovik, Adis | Zürich (SUI) / FYROM |  ARYM | Delantero |
| Jaime | Beira-Mar (POR) |  Portugal | Centrocampista |
| Jaime | Valladolid (ESP) | España | Portero |
| Jaissle, Matthias | Hoffenheim (GER) | Alemania | Defensa |
| Jajá | Metalist (UKR) |  Brasil | Delantero |
| Jakab, Réka | Femina (HUN) / Hungary WOCO |  Hungría | Delantero |
| Jakabfi, Zsanett | Wolfsburg (GER) / Hungary WOCO | Hungría | Centrocampista |
| Jakimovski, Nikola | Makedonija (MKD) / FYROM U21 | ARYM | Delantero |
| Jakobia, Lasha | Hoverla (UKR) |  Georgia | Delantero |
| Jakobsen, Michael | København (DEN) | Dinamarca | Defensa |
| Jakobsen, Simon | Silkeborg (DEN) | Dinamarca | Defensa |
| Jakobsson, Sofia | Rossiyanka (RUS) |  Suecia | Delantero |
| Jakobsson, Nina | Sweden WU19 | Suecia | Centrocampista |
