| Ilori, Tiago | Sporting (POR) |  Portugal | Defender |
| Ilsanker, Stefan | Salzburg (AUT) |  Austria | Midfield |
| Ilsinho | Shakhtar Donetsk (UKR) |  Brazil | Midfield |
| Iltar, Suheyla | Azerbaijan WU17 |  Azerbaijan | Defender |
| Ilunga, Hérita | Rennes (FRA) |  France | Defender |
| Iluz, Rom David | Israel U19 |  Israel | Goalkeeper |
| Ilya Maksimov | Krylya Sovetov (RUS) |  Russia | Midfield |
| İlyasoğlu, Mustafa | Ankara (TUR) |  Turkey | Goalkeeper |
| Ilyasov, Olzhas | Tobol (KAZ) / Kazakhstan U19 |  Kazakhstan | Midfield |
| Ilyin, Aleksandr | Dinamo Moskva (RUS) | Russia | Midfield |
| Ilyuschenkov, Oleksandr | Karpaty (UKR) |  Ukraine | |
| Imami, Eni | Laç (ALB) / Albania U21 |  Albania | Defender |
| Imamović, Ermin | Bosnia and Herzegovina U19 |  Bosnia and Herzegovina | Defender |
| Imamverdiyev, Cavid | Azerbaijan U21 | Azerbaijan | Midfield |
| Imanalijeva, Oksana | Gintra (LTU) / Lithuania WOCO |  Lithuania | Midfield |
| Imanalijeva, Rasa | Gintra (LTU) / Lithuania WOCO | Lithuania | Forward |
| Imerekov, Maxym | Metalurh Zaporizhya (UKR) | Ukraine | Defender |
| Iminov, Islam | Kazakhstan U17 | Kazakhstan | Defender |
| Immers, Lex | Feyenoord (NED) |  Netherlands | Midfield |
| Immobile, Ciro | Genoa (ITA) / Italy U21 |  Italy | Forward |
| Imrie, Dougie | St Mirren (SCO) |  Scotland | |
| Iñaki Astiz | Legia (POL) |  Spain | Defender |
| Inanc, Efe | İstanbul BB (TUR) | Turkey | |
| Inapshba, Timor | Ilves (FIN) / Finland FUT |  Finland | Forward |
| Ince, Thomas | Blackpool (ENG) / England U21 |  England | Midfield |
| Ince, Rohan | Chelsea (ENG) | England | Midfield |
| Incedemir, Yigit | Karabükspor (TUR) | Turkey | Midfield |
| Indermitte, Joel | Kuressaare (EST) / Estonia U21 |  Estonia | Forward |
| Indoitu, Daniel | Zimbru (MDA) / Moldova U21 |  Moldova | Defender |
| Inês Silva | Portugal WU19 | Portugal | Defender |
| Infante, Alexandre | Switzerland U19 |  Switzerland | Defender |
| Ingason, Sverrir | Breidablik (ISL) / Iceland U21 |  Iceland | Defender |
| Ingason, Poul | TB (FRO) / Faroe Islands U19 |  Faroe Islands | Forward |
| Ingle, Sophie | Cardiff (WAL) / Wales WOCO |  Wales | Midfield |
| Ingvarsson, Einar | Iceland U21 | Iceland | Midfield |
| Ingvartsen, Marcus | Denmark U17 |  Denmark | Forward |
| Ingves, Wilhelm | Mariehamn (FIN) / Finland U21 | Finland | Forward |
| Iniesta, Andrés | Barcelona (ESP) / Spain | Spain | Midfield |
| Íñigo Pérez | Athletic (ESP) | Spain | Midfield |
| Injac, Dimitrije | Polonia Warszawa (POL) |  Serbia | Midfield |
| Inkoom, Samuel | Bastia (FRA) |  Ghana | Defender |
| Inler, Gökhan | Napoli (ITA) / Switzerland | Switzerland | Midfield |
| Innikov, Dmitri | Bekentas (LTU) | Russia | Forward |
| Insaurralde, Juan | Spartak Moskva (RUS) |  Argentina | Defender |
| Insigne, Lorenzo | Napoli (ITA) / Italy / Italy U21 | Italy | Forward |
| Insigne, Roberto | Napoli (ITA) / Italy U19 | Italy | Forward |
| Insúa, Emiliano | Atlético (ESP) | Argentina | Defender |
| Insua | Deportivo (ESP) | Spain | Defender |
| Intzidis, Christos | PAOK (GRE) |  Greece | Defender |
| Ioannidis, Giorgos | OFI (GRE) | Greece | Defender |
