This article lists squads for the 1978 UEFA European Under-21 Championship final eight tournament played between 8 March and 28 May 1978. Players in bold have later been capped at full international level for their country. Cap data only takes into account appearances in the tournament proper, i.e. the knockout stage which was played as two-legged home and away ties.
Only six players played in the maximum of six matches, four for East Germany (Lutz Eigendorf, Lothar Hause, Burkhard Pingel, Andreas Roth) and two for Yugoslavia (Srećko Bogdan and Nenad Stojković).
Age listed is of 8 March 1978 and England–Italy, the first game played of the knockout tournament.