2017 UEFA European Under-21 Championship

The 2017 UEFA European Under-21 Championship (also known as UEFA Under-21 Euro 2017) was the 21st edition of the UEFA European Under-21 Championship, a biennial international youth football championship organised by UEFA for the men's under-21 national teams of Europe. The final tournament was hosted in Poland for the first time, after their bid was selected by the UEFA Executive Committee on 26 January 2015 in Nyon, Switzerland. The tournament took place from 16 to 30 June 2017. Players born on or after 1 January 1994 were eligible for the tournament.

In March 2012, UEFA announced that the competition would take place in even numbered years from 2016 onwards. In September 2013, UEFA announced its intention to continue holding the final tournament in odd numbered years following a request from its member national football associations. On 24 January 2014, UEFA confirmed that the final tournament would be held in 2017 and that it would be expanded from 8 teams to 12.