| Jakoliš, Antonio | Hajduk Split (CRO) / Croatia U21 |  Croatia | Midfield |
| Jakovlev, Svjatoslav | Estonia U17 |  Estonia | Forward |
| Jakovļevs, Dmitrijs | Raba (LVA) / Latvia FUT |  Latvia | Forward |
| Jakovska, Eli | ZFK Nase (MKD) / FYROM WU19 / FYROM WOCO |  FYROM | Forward |
| Jakubko, Martin | Amkar (RUS) / Slovakia |  Slovakia | Forward |
| Jakuševs, Artjoms | Latvia U17 | Latvia | Defender |
| Jakutavičius, Mantas | Lithuania U17 |  Lithuania | Forward |
| Jaliens, Kew | Wisła (POL) |  Netherlands | Defender |
| Jalilli, Nigar | Azerbaijan WU17 |  Azerbaijan | Midfield |
| Jallet, Christophe | PSG (FRA) / France |  France | Defender |
| Jallo, Gaby | Willem II (NED) |  Syria | Defender |
| Jamaladdinov, Shamil | Sumqayıt (AZE) / Azerbaijan U19 | Azerbaijan | Midfield |
| Jamburia, Aleksandr | Iberia Star (GEO) / Georgia FUT |  Georgia | Goalkeeper |
| James, Angharad | Arsenal (ENG) / Wales WOCO |  Wales | Defender |
| James, Ashleigh | Wales WU17 | Wales | Defender |
| James Rodríguez | Porto (POR) |  Colombia | Forward |
| Jamróz, Łukasz | Korona (POL) / Poland U21 |  Poland | Forward |
| Ján Maslo | Volyn (UKR) | Slovakia | Defender |
| Janaína | Zorkiy (RUS) |  Brazil | Defender |
| Jančeva, Violeta | FYROM WU17 | FYROM | Defender |
| Jancov, Vitalie | Moldova U19 |  Moldova | Midfield |
| Jančovičová, Michaela | Slovan Bratislava (SVK) / Slovakia WU19 | Slovakia | Midfield |
| Janda, Petr | Antalyaspor (TUR) |  Czech Republic | Midfield |
| Janeczek, Marlena | Unia Racibórz (POL) | Poland | Goalkeeper |
| Janeczko, Mateusz | Podbeskidzie (POL) / Poland U19 | Poland | Forward |
| Janicki, Rafał | Lechia (POL) | Poland | Defender |
| Jänisch, Mathias | Luxembourg U21 / Luxembourg |  Luxembourg | Midfield |
| Janjatovic, Dejan | St Gallen (SUI) |  Germany | Midfield |
| Janjić, Slobodan | Ekonomac (SRB) / Serbia FUT |  Serbia | Defender |
| Janjušević, Ivan | Sutjeska (MNE) / Montenegro |  Montenegro | Goalkeeper |
| Janjušević, Božidar | Sutjeska (MNE) / Montenegro U19 | Montenegro | Midfield |
| Janko, Marc | Trabzonspor (TUR) / Austria |  Austria | Forward |
| Jankov, Marijana | Serbia WU19 | Serbia | Midfield |
| Janković, Boško | Genoa (ITA) | Serbia | Midfield |
| Janković, Branislav | Grbalj (MNE) / Montenegro U21 | Montenegro | Midfield |
| Janković, Marko | Montenegro U19 | Montenegro | Midfield |
| Janković, Tijana | Serbia WU17 | Serbia | Defender |
| Jankovskij, Rišard | Bekentas (LTU) | Lithuania | Forward |
| Jankowska, Katarzyna | Poland WOCO | Poland | Goalkeeper |
| Jankowska, Anna | Poland WU19 | Poland | Midfield |
| Jankowski, Malcej | Ruch (POL) / Poland U21 | Poland | Midfield |
| Janků, Kristyna | Czech Republic WU19 | Czech Republic | Defender |
| Janmaat, Daryl | Feyenoord (NED) / Netherlands | Netherlands | Defender |
| Janoszka, Łukasz | Ruch (POL) | Poland | Forward |
| Janota, Michal | Korona (POL) | Poland | Forward |
| Janovský, Jan | Akademia Pniewy (POL) / Czech Republic FUT | Czech Republic | Forward |
| Jans, Mie | Brøndby (DEN) / Denmark WU19 |  Denmark | Midfield |
| Jans, Laurent | Fola (LUX) / Luxembourg / Luxembourg U21 | Luxembourg | Midfield |
| Janse, Jens | NAC (NED) | Netherlands | Defender |
| Jansen, Marcell | Hamburg (GER) / Germany | Germany | Defender |
