On July 6, in the quarterfinals of the Euros, Spain defeated Germany 2-1 after extra time. Following the match, Olmo was selected as the Player of the Match.
Olmo came on as a substitute for the injured Pedri in the 8th minute of the first half, playing for 112 minutes. He had 66 touches, completed 42 of 62 passes, created 3 goal-scoring opportunities, won 8 duels, successfully executed 4 out of 5 dribbles, and had 3 shots, 2 of which were on target, contributing 1 goal and 1 assist.