| Ioannou, Ilias | Veria (GRE) |  Greece | Forward |
| Ioannou, Kyriakos | APOEL (CYP) / Cyprus U21 |  Cyprus | Goalkeeper |
| Ioannou, Maria | Apollon (CYP) | Cyprus | Defender |
| Ioannou, Markos | Omonia (CYP) / Cyprus FUT | Cyprus | Defender |
| Ioannou, Nikolas | Cyprus U19 | Cyprus | Midfield |
| Iolanda Silva | Portugal WU19 |  Portugal | Midfield |
| Ionescu, Cristian | Braşov (ROU) |  Romania | Midfield |
| Ionescu, Octavian Mihail | Gloria Bistriţa (ROU) | Romania | Midfield |
| Ioniţă, Artur | Aarau (SUI) / Moldova U21 / Moldova |  Moldova | Midfield |
| Ioniţă, Alexandru | Rapid Bucureşti (ROU) | Romania | Midfield |
| Ionov, Aleksei | Kuban (RUS) |  Russia | Midfield |
| Iordache, Dragos Adrian | Gloria Bistriţa (ROU) | Romania | Defender |
| Iordachius, Olga | Romania WOCO | Romania | Midfield |
| Iordachiusi, Olga | Apollon (CYP) | Romania | Midfield |
| Iordanou, Krystina | Apollon (CYP) | Cyprus | Defender |
| Iorga, Laurenţiu | Oţelul (ROU) | Romania | Forward |
| Ioseliani, Givi | Georgia U21 |  Georgia | Midfield |
| Iotova, Stefani | Bulgaria WOCO |  Bulgaria | Forward |
| Ippel, Ricardo | Willem II (NED) |  Netherlands | Midfield |
| Ippoliti, Luca | Italy FUT |  Italy | Forward |
| Ipša, Kristijan | Midtjylland (DEN) |  Croatia | Defender |
| Iraizoz, Gorka | Athletic (ESP) |  Spain | Goalkeeper |
| Ireland, Stephen | Aston Villa (ENG) |  Republic of Ireland | Midfield |
| Irimia, Ionuţ | Iaşi (ROU) | Romania | Goalkeeper |
| Iriney | Granada (ESP) |  Brazil | Midfield |
| Irvine, Gary | Dundee (SCO) |  Scotland | Defender |
| Irvine, Jackson | Celtic (SCO) |  Australia | Midfield |
| Isaac, Promise | Antalyaspor (TUR) |  Nigeria | Forward |
| Isaac Cuenca | Ajax (NED) / Spain U21 | Spain | Forward |
| Isaev, Tal | Israel WOCO |  Israel | Midfield |
| Isajevs, Vjačeslavs | Latvia U21 |  Latvia | Midfield |
| Isaksen, Samuel | Sandefjord (NOR) / Norway FUT |  Norway | Forward |
| Isaksen, Ingvild | Kolbotn (NOR) / Norway WOCO | Norway | Forward |
| Isaksen, Jogvan | KÍ (FRO) / Faroe Islands U21 |  Faroe Islands | Defender |
| Isaksen, Elin Maria | Faroe Islands WU19 | Faroe Islands | Midfield |
| Isaksson, Andreas | Kasımpaşa (TUR) / Sweden |  Sweden | Goalkeeper |
| Isayev, Magsad | Azerbaijan U19 |  Azerbaijan | Forward |
| Isci, Sefa | Belgium U17 |  Belgium | Defender |
| Isco | Málaga (ESP) / Spain U21 / Spain | Spain | Midfield |
| Isgandarov, Tural | Qarabağ (AZE) / Azerbaijan U21 | Azerbaijan | Forward |
| Ishak, Mikael | St Gallen (SUI) / Sweden U21 | Sweden | Forward |
| Ishizaki, Stefan | Elfsborg (SWE) | Sweden | Midfield |
| Iskander, Alexander | Väsby (SWE) / Sweden FUT | Sweden | Midfield |
| Iskanius, Emilia | Finland WU19 |  Finland | Forward |
| Iskeceli, Gamze | Turkey WOCO |  Turkey | Forward |
| Isla, Mauricio | Juventus (ITA) |  Chile | Midfield |
| Islamkhan, Bauyrzhan | Kuban (RUS) / Kazakhstan / Kazakhstan U21 |  Kazakhstan | |
| Islamović, Maksida | Bosnia and Herzegovina WOCO / Bosnia and Herzegovina WU19 |  Bosnia and Herzegovina | Midfield |
| Ismael López | Athletic (ESP) | Spain | Forward |
| İsmail Çelen | Turkey FUT | Turkey | Forward |
