* Diagon Alley: This is the magical shopping street in London, filled with shops selling everything from wands to magical creatures.
* Knockturn Alley: This is a dark and sinister alley located in the same area as Diagon Alley, known for its shops selling dark arts items and frequented by Death Eaters.
While these are not technically named as "alleys," they are the two most prominent "streets" within the magical world in London that can be considered alleys.