Norrie called the Spaniard “probably the best player in the world at the moment” and the tournament favourite.
Despite the loss, Norrie said he is happy with how he performed at Wimbledon, is “enjoying my tennis a lot”, and will “take so much confidence from this”.
His performance will see him climb back to approximately 43 in the world rankings.
Alcaraz, who secured his 19th consecutive win at the All England Club, will now face American fifth seed Taylor Fritz in the semi-finals.